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Pennsylvania State University Herbarium
PAC	Alnus glutinosa (L.) Gaertn. PAC0019478Thomas C. Porter   s.n.1865-09-15 United States, Maryland, Wicomico, Salisbury, 38.360674 -75.599369 Full Record Details
PAC	Alnus incana subsp. rugosa (Du Roi) R.T. Clausen PAC0019479Mary Jones Fisher   661938-10-01 United States, Maryland, Frederick, 1.5 miles W of Thurmont, Hunting Creek, 39.627312 -77.444964 Full Record Details
PAC	Alnus serrulata (Aiton) Willd. PAC0019480M. Burch   35571971-07-05 United States, Maryland, Baltimore, Beckleysville Road, 1/2 mile from intersection with Kidds Schoolhouse Road, 39.659833 -76.751741 Full Record Details
PAC	Veronica arvensis L. PAC0035303D. R. Windler   38251972-06-01 United States, Maryland, Baltimore, Cromwell Bridge Road and Satyr Hill Road, old railroad right-of-way, 39.417363 -76.541814 Full Record Details
PAC	Veronica arvensis L. PAC0035304Horace W. Witman   19811952-05-11 United States, Maryland, Cecil, 1 mile NW of Conowingo, 39.677704 -76.186942 Full Record Details
PAC	Veronica hederifolia L. PAC0035306Elizabeth C. Earle   48131954-04-18 United States, Maryland, Talbot, 5 miles ENE of Easton, Kings Creek, 38.796345 -75.989188 Full Record Details
PAC	Veronica officinalis L. PAC0035308M. Burch   35581971-07-05 United States, Maryland, Baltimore, Prettyboy Reservoir, intersection of Beckleysville Road and Kidds Schoolhouse Road, 39.659709 -76.75143 Full Record Details
PAC	Veronica peregrina L. PAC0035317Walter F. Westerfeld   113031954-06-13 United States, Maryland, Allegany, in Cumberland, 39.652865 -78.762518 Full Record Details
PAC	Veronica persica Poir. PAC0035319Kubicki   30511970-04-25 United States, Maryland, Baltimore, Harford and Long Green Pike Farm, 39.434965 -76.487508 Full Record Details
PAC	Veronica serpyllifolia L. PAC0035324Elizabeth C. Earle   41811945-09-29 United States, Maryland, Talbot, 3.75 miles NNW of Unionville, 38.86474 -76.159156 Full Record Details
PAC	Veronicastrum virginicum (L.) Farw. PAC0035353D. R. Windler   37201971-08-11 United States, Maryland, Baltimore, N of Towson, Loch Raven Reservoir, 39.425097 -76.541797 Full Record Details
PAC	Veronicastrum virginicum (L.) Farw. PAC0035354Harry E. Ahles   17141953-08-09 United States, Maryland, Garrett, Mountain Lake Park, Mountain Lake, 39.400515 -79.370567 Full Record Details
PAC	Lindernia anagallidea (Michx.) Pennell PAC0035390Elizabeth C. Earle   47321951-09-03 United States, Maryland, Talbot, 1 1/8 miles SW of Unionville, 38.802798 -76.154648 Full Record Details
PAC	Lindernia dubia (L.) Pennell PAC0035392Horace W. Witman   22111952-07-29 United States, Maryland, Cecil, Frenchtown, 39.57539 -76.081616 Full Record Details
PAC	Cephalanthus occidentalis L. PAC0035448S. J. Lombardo   36251971-07-18 United States, Maryland, Cecil, 1/2 mile S of Conowingo Dam, Susquehanna River, 39.652075 -76.169639 Full Record Details
PAC	Diodia teres Walter PAC0035467Horace W. Witman   22931952-08-25 United States, Maryland, Cecil, 3 miles S of Elkton, 39.556515 -75.8333 Full Record Details
PAC	Diodia teres Walter PAC0035468J. P. Kelly   s.n.1937-08-20 United States, Maryland, Harford, Bush, 39.47372 -76.264123 Full Record Details
PAC	Diodia teres Walter PAC0035469D. R. Windler   37471917-08-15 United States, Maryland, Baltimore, N of Cub Hill Road, Cromwell Bridge Road, 39.425709 -76.528424 Full Record Details
PAC	Galium triflorum Michx. PAC0035848Walter F. Westerfeld   29781951-08-05 United States, Maryland, Allegany, 2 miles SE of Lonaconing, 39.545421 -78.953713 Full Record Details
PAC	Galium verum L. PAC0019534Walter F. Westerfeld   63691952-09-15 United States, Maryland, Allegany, Cumberland, 39.652865 -78.762518 Full Record Details
PAC	Muhlenbergia schreberi J. F. Gmel. PAC0019664Jesse H. Holmes   s.n.1888-00-00 United States, Maryland, Baltimore, Baltimore, 39.2833 -76.6 Full Record Details
PAC	Panicum amarum Ell. PAC0019743E. Durand   s.n.1870-00-00 United States, Maryland, Anne Arundel, Annapolis, 38.978512 -76.49347 Full Record Details
PAC	Panicum anceps Michx. PAC0019758D. R. Windler   37771971-08-21 United States, Maryland, Baltimore, Warren Road, 0.4 mile E of intersection with Cub Hill Road Full Record Details
PAC	Panicum anceps Michx. PAC0019759Horace W. Witman   11041956-08-21 United States, Maryland, Cecil, 3 miles E of Rising Sun, 39.703948 -76.006554 Full Record Details
PAC	Panicum dichotomiflorum Michx. PAC0019881Walter F. Westerfeld   12,1211954-09-13 United States, Maryland, Allegany, Cumberland, 39.652865 -78.762518 Full Record Details
PAC	Panicum dichotomiflorum Michx. PAC0019882Elizabeth C. Earle   40081944-10-01 United States, Maryland, Talbot, 2.25 miles SSW of Longwoods, 38.828034 -76.094861 Full Record Details
PAC	Panicum dichotomum L. PAC0019885D. R. Windler   38721972-06-07 United States, Maryland, Baltimore, Harford Road Bridge over Gunpowder Falls, 39.422033 -76.502272 Full Record Details
PAC	Panicum rigidulum Bosc ex Nees PAC0020015Jesse H. Holmes   1381890-07-00 United States, Maryland, Somerset, Crissfield, 37.983458 -75.853821 Full Record Details
PAC	Panicum rigidulum Bosc ex Nees PAC0020016Elizabeth C. Earle   39561944-09-27 United States, Maryland, Talbot, 1 mile SSE of Unionville, 38.799789 -76.132697 Full Record Details
PAC	Panicum verrucosum Muhl. PAC0020036Elizabeth C. Earle   39371944-09-24 United States, Maryland, Talbot, 1 1/4 miles SSE of Unionville, 38.79713 -76.128738 Full Record Details
PAC	Panicum verrucosum Muhl. PAC0020037J. P. Kelly   s.n.1937-08-20 United States, Maryland, Harford, Bush, 39.47372 -76.264123 Full Record Details
PAC	Panicum virgatum L. PAC0020082Elizabeth C. Earle   53211966-07-27 United States, Maryland, Talbot, 2 1/4 miles NW of Easton, 38.797343 -76.105915 Full Record Details
PAC	Panicum virgatum L. PAC0020083J. P. Kelly   s.n.1937-08-20 United States, Maryland, Harford, Bush River, 39.4333 -76.2333 Full Record Details
PAC	Panicum virgatum L. PAC0020084Walter F. Westerfeld   59581952-08-24 United States, Maryland, Queen Anne's, 1 mile W of Stevensville, E beach of Chesapeake Bay, 38.978614 -76.334035 Full Record Details
PAC	Panicum sp. PAC0020095Elizabeth C. Earle   38551943-09-25 United States, Maryland, Talbot, 2 miles SSW of Unionville, 38.786661 -76.153907 Full Record Details
PAC	Galium aparine L. PAC0035938Walter F. Westerfeld   42751952-05-31 United States, Maryland, Allegany, Cumberland, 39.652865 -78.762518 Full Record Details
PAC	Galium asprellum Michx. PAC0035940Witmer Stone   140781911-08-08 United States, Maryland, Garrett, Jennings, 4 miles S of Grantsville, 39.646474 -79.182532 Full Record Details
PAC	Galium circaezans Michx. PAC0035944Horace W. Witman   17041951-06-15 United States, Maryland, Cecil, 5 miles SE of Calvert, 39.649123 -75.915839 Full Record Details
PAC	Galium mollugo L. PAC0035951D. R. Windler   39091972-06-11 United States, Maryland, Frederick, 0.9 mile N of entrance to Gambrill State Park, Route 40, 39.465849 -77.511219 Full Record Details
PAC	Galium obtusum Bigelow PAC0035954Horace W. Witman   9391950-06-18 United States, Maryland, Cecil, 2 miles W of Calvert, 39.703288 -76.019094 Full Record Details
PAC	Galium obtusum Bigelow PAC0035955Elizabeth C. Earle   35531942-05-10 United States, Maryland, Talbot, 0.75 mile SSW of Longwoods, 38.847738 -76.081476 Full Record Details
PAC	Galium pilosum Aiton PAC0035960D. R. Windler   40521972-07-30 United States, Maryland, Carroll, W of Manchester, road to the Manchester Bible Camp, 39.654461 -76.891626 Full Record Details
PAC	Galium pilosum Aiton PAC0035961Elizabeth C. Earle   15311937-07-04 United States, Maryland, Talbot, 3 1/4 miles NW of Easton, 38.80759 -76.119064 Full Record Details
PAC	Galium tinctorium (L.) Scop. PAC0035962Elizabeth C. Earle   52281965-05-29 United States, Maryland, Talbot, 4 1/2 miles SW of Trappe, Island Neck Road Full Record Details
PAC	Houstonia caerulea L. PAC0035975F. D. Fee   161976-04-17 United States, Maryland, Allegany, 6.5 miles E of Flintstone, Green Ridge State Forest, Fifteenmile Creek, 39.690104 -78.452131 Full Record Details
PAC	Houstonia caerulea L. PAC0035976J. E. Benedict, Jr.   s.n.1910-04-10 United States, Maryland, Montgomery, Woodside, 39.003443 -77.037755 Full Record Details
PAC	Houstonia longifolia Gaertn. PAC0035978John R. Kunsman   9481977-05-31 United States, Maryland, Allegany, 0.7 mile S of junction of Route 40 and Alternate Route 40, above Piclic Run, Green Ridge State Forest, 39.667428 -78.464702, 244m Full Record Details
PAC	Houstonia purpurea L. PAC0035979D. R. Windler   38751972-06-07 United States, Maryland, Baltimore, powerline clearing, Harford Road Bridge over Gunpowder Falls, 39.422033 -76.502272 Full Record Details
PAC	Houstonia purpurea L. PAC0035980D. R. Windler   38301972-06-01 United States, Maryland, Baltimore, Cromwell Bridge Road and Satyr Hill Road, old railroad right-of-way, 39.417363 -76.541814 Full Record Details
PAC	Houstonia purpurea L. PAC0035981John A. Jump   s.n.1937-06-03 United States, Maryland, Talbot, 2 miles S of Easton, 38.737706 -76.0667 Full Record Details
PAC	Mitchella repens L. PAC0036056Elizabeth C. Earle   50971957-12-27 United States, Maryland, Talbot, 2 miles S of Wye Mills, 38.910461 -76.072904 Full Record Details
PAC	Mitchella repens L. PAC0036057Mary Jones Fisher   801938-10-01 United States, Maryland, Frederick, 1.5 miles W of Thurmont, Hunting Creek, 39.627312 -77.444964 Full Record Details
PAC	Celtis canina Raf. PAC0020637Horace W. Witman   9231950-06-17 United States, Maryland, Cecil, 3 miles W of Cecilton, 39.409161 -75.923546 Full Record Details
PAC	Celtis occidentalis L. PAC0020653Walter F. Westerfeld   53191952-07-25 United States, Maryland, Allegany, 1 mile S of Corriganville, 39.67759 -78.792038 Full Record Details
PAC	Celtis occidentalis L. PAC0020654S. J. Lombardo   37331971-08-15 United States, Maryland, Baltimore, ESE of Prettyboy Reservoir, steel bridge on Fall Road, 39.619047 -76.690308 Full Record Details
PAC	Celtis occidentalis L. PAC0020655Horace W. Witman   19841952-05-11 United States, Maryland, Cecil, Pilot, 39.703995 -76.201343 Full Record Details
PAC	Celtis tenuifolia Nutt. PAC0020666Elizabeth C. Earle   40901945-06-18 United States, Maryland, Talbot, 1/2 mile SSW of Easton, 38.767586 -76.079888 Full Record Details
PAC	Ulmus americana L. PAC0020837Horace W. Witman   2551950-08-30 United States, Maryland, Cecil, 1 mile S of Sylmar, 39.70846 -76.02278 Full Record Details
PAC	Ulmus americana L. PAC0020838Walter F. Westerfeld   53181952-07-25 United States, Maryland, Allegany, 1 mile S of Corriganville, 39.67759 -78.792038 Full Record Details
PAC	Ulmus rubra Muhl. PAC0020862Elizabeth C. Earle   37651942-09-06 United States, Maryland, Talbot, 3.5 miles WNW of Longwoods, Wye River, 38.877572 -76.13903 Full Record Details
PAC	Ulmus rubra Muhl. PAC0020863Walter F. Westerfeld   53201952-07-25 United States, Maryland, Allegany, 1 mile S of Corriganville, 39.67759 -78.792038 Full Record Details
PAC	Maclura pomifera (Raf.) C. K. Schneid. PAC0020955D. R. Windler   37701971-08-23 United States, Maryland, Baltimore, Warren Road, 0.4 mile E of intersection with Poplar Hill Road, 39.492298 -76.59829 Full Record Details
PAC	Morus alba L. PAC0021018Walter F. Westerfeld   53111952-07-25 United States, Maryland, Allegany, Cumberland, 39.652865 -78.762518 Full Record Details
PAC	Morus alba L. PAC0021019D. R. Windler   30891970-06-30 United States, Maryland, Baltimore, N of Towson, Cromwell Bridge Road and Glen Arm Road, 39.425385 -76.52941 Full Record Details
PAC	Morus rubra L. PAC0021028D. R. Windler   39411972-06-24 United States, Maryland, Anne Arundel, intersection of Jumpers Hill and Elvaton Roads, 39.121571 -76.589684 Full Record Details
PAC	Morus rubra L. PAC0021029Horace W. Witman   12961950-08-31 United States, Maryland, Cecil, 3 miles W of Cecilton, 39.409161 -75.923546 Full Record Details
PAC	Humulus japonicus Siebold & Zucc. PAC0021077D. R. Windler   40461972-07-30 United States, Maryland, Carroll, S of Westminster, W Maryland Railroad between Spring Mills and Avondale, 39.556477 -77.022847 Full Record Details
PAC	Humulus lupulus L. PAC0021080Horace W. Witman   25391953-08-06 United States, Maryland, Cecil, New Bridge, Boy Scout Road, 38.47984 -75.87938 Full Record Details
PAC	Boehmeria cylindrica (L.) Sw. PAC0021154Horace W. Witman   24951953-07-08 United States, Maryland, Cecil, 3 miles SE of Elkton, 39.569245 -75.793394 Full Record Details
PAC	Boehmeria cylindrica (L.) Sw. PAC0021155Franklin C. Lane   18781953-09-05 United States, Maryland, Allegany, S of Cumberland, 39.623876 -78.762519 Full Record Details
PAC	Boehmeria cylindrica (L.) Sw. PAC0021156J. P. Kelly   s.n.1937-08-20 United States, Maryland, Harford, Bush, 39.47372 -76.264123 Full Record Details
PAC	Boehmeria cylindrica (L.) Sw. PAC0021157D. R. Windler   31601970-07-20 United States, Maryland, Baltimore, Towson, Towson State College, 39.39321 -76.611494 Full Record Details
PAC	Laportea canadensis (L.) Wedd. PAC0021225Walter F. Westerfeld   29791951-08-05 United States, Maryland, Allegany, 2 miles SE of Lonaconing, 39.545421 -78.953713 Full Record Details
PAC	Lonicera japonica Thunb. PAC0036468D. R. Windler   36451971-07-25 United States, Maryland, Saint Mary's, Lookout Point, 38.046219 -76.321574 Full Record Details
PAC	Lonicera japonica Thunb. PAC0036469Horace W. Witman   9291950-06-17 United States, Maryland, Cecil, 3 miles W of Cecilton, 39.409161 -75.923546 Full Record Details
PAC	Lonicera sempervirens L. PAC0036473Horace W. Witman   7171950-05-20 United States, Maryland, Cecil, 2 miles SE of Elkton, 39.586277 -75.806665 Full Record Details
PAC	Symphoricarpos orbiculatus Moench PAC0036559Horace W. Witman   21441952-07-22 United States, Maryland, Cecil, 1 mile E of Fair Hill, 39.702155 -75.849161 Full Record Details
PAC	Paspalum ciliatifolium Michx. PAC0020106Horace W. Witman   11241950-08-25 United States, Maryland, Cecil, 1 mile N of Blake, 39.728226 -75.918949 Full Record Details
PAC	Paspalum floridanum Michx. PAC0020119Agnes Chase   126491944-09-16 United States, Maryland, Calvert, Port Frederick, 38.5404 -76.584402 Full Record Details
PAC	Paspalum floridanum Michx. PAC0020120Elizabeth C. Earle   36761942-07-30 United States, Maryland, Talbot, 1 mile SW of Unionville, 38.800879 -76.148761 Full Record Details
PAC	Paspalum floridanum Michx. PAC0020121J. R. Lowrie   s.n1870-00-00 United States, Maryland, Anne Arundel, Annapolis, 38.978512 -76.49347 Full Record Details
PAC	Paspalum floridanum Michx. PAC0020122Horace W. Witman   12011950-08-26 United States, Maryland, Cecil, 1 mile N of Conowingo, 39.682792 -76.170749 Full Record Details
PAC	Paspalum floridanum Michx. PAC0020123J. P. Kelly   s.n1937-08-20 United States, Maryland, Harford, Bush River, 39.4333 -76.2333 Full Record Details
PAC	Paspalum laeve Michx. PAC0020126Elizabeth C. Earle   53291966-08-25 United States, Maryland, Talbot, 2 miles W of Easton, 38.774277 -76.11352 Full Record Details
PAC	Paspalum pubescens Muhl. ex Willd. PAC0020138Jason R. Swallen   881925-09-00 United States, Maryland, Montgomery, Cabin John to Great Falls, 38.976022 -77.203225 Full Record Details
PAC	Phalaris arundinacea L. PAC0020211Elizabeth C. Earle   40931945-06-18 United States, Maryland, Talbot, 0.25 mile SW of Easton, 38.75699 -76.080231 Full Record Details
PAC	Phleum pratense L. PAC0020281D. R. Windler   30901970-06-30 United States, Maryland, Baltimore, N of Towson, Cromwell Bridge Road and Glen Arm Road, 39.425385 -76.52941 Full Record Details
PAC	Phleum pratense L. PAC0020282Walter F. Westerfeld   78461953-06-08 United States, Maryland, Washington, 2 miles W of Hancock, 39.700296 -78.22084 Full Record Details
PAC	Phleum pratense L. PAC0020283M. Burch   35481971-07-05 United States, Maryland, Baltimore, Prettyboy Reservoir, intersection of Beckleysville Road and Kidds Schoolhouse Road, 39.659709 -76.75143 Full Record Details
PAC	Phragmites communis Trin. PAC0020296L. F. Crendorff   301972-10-13 United States, Maryland, Worcester, Assateaque Island, dirt road running parallel to the ocean, 38.162736 -75.166445 Full Record Details
PAC	Phragmites communis Trin. PAC0020297Horace W. Witman   13711950-09-16 United States, Maryland, Cecil, Elkton, 39.606778 -75.833272 Full Record Details
PAC	Phragmites communis Trin. PAC0020298Elizabeth C. Earle   51871964-09-26 United States, Maryland, Talbot, 3.75 miles ENE of Easton, 38.795069 -76.011907 Full Record Details
PAC	Poa autumnalis Muhl. ex Elliott PAC0020408Elizabeth C. Earle   42571941-05-17 United States, Maryland, Talbot, 1 1/2 miles S of Unionville, 38.791808 -76.140883 Full Record Details
PAC	Poa compressa L. PAC0020484Elizabeth C. Earle   38111943-06-20 United States, Maryland, Talbot, 1.25 miles S of Unionville, 38.796053 -76.133317 Full Record Details
PAC	Pilea pumila (L.) A. Gray PAC0021358D. R. Windler   32631970-09-08 United States, Maryland, Baltimore, Towson, Towson State College, pond area at W end of campus, 39.39294 -76.610581 Full Record Details
PAC	Urtica dioica L. PAC0021430H. W. Witman   16891951-06-13 United States, Maryland, Cecil, 1 mile S of Rising Sun, 39.683443 -76.065081 Full Record Details
PAC	Urtica dioica L. PAC0021431D. R. Windler   39501972-06-28 United States, Maryland, Baltimore, W end of Towson State College, 39.386871 -76.620118 Full Record Details
PAC	Urtica dioica L. PAC0021432Elizabeth C. Earle   41801945-09-29 United States, Maryland, Talbot, 3.75 miles NNW of Unionville, 38.86474 -76.159156 Full Record Details
PAC	Urtica procera Muhl. ex Willd. PAC0021438H. W. Witman   20031952-07-02 United States, Maryland, Cecil, 2 miles W of Port Deposit, 39.626117 -76.139981 Full Record Details
PAC	Fallopia japonica (Houtt.) Ronse Decr. PAC0021953D. R. Windler   37731971-08-23 United States, Maryland, Baltimore, 0.6 mile W of Loch Raven Reservoir on Warren Road, 39.483218 -76.614194 Full Record Details

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