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Pennsylvania State University Herbarium
PAC	Sambucus canadensis L. PAC0027269Harry E. Ahles   805011975-07-06 United States, Massachusetts, Middlesex, NW Cambridge, railroad right-of-way Full Record Details
PAC	Carex pallescens L. PAC0007049J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Mystic River Full Record Details
PAC	Epifagus virginiana (L.) W. Bartram PAC0028619Harry E. Ahles   651371966-10-22 United States, Massachusetts, Middlesex, N of Fitchburg, junction of Mass Rt. 119 and 31 Full Record Details
PAC	Myosotis verna Nutt. PAC0030693L. B. Smith   13901945-05-27 United States, Massachusetts, Middlesex, Horn Pond Hill, Woburn Full Record Details
PAC	Boehmeria cylindrica (L.) Sw. PAC0021158Ernest Rouleau   s.n.1945-08-05 United States, Massachusetts, Middlesex, Winchester, 42.449278 -71.139745 Full Record Details
PAC	Bidens frondosa L. PAC0038590J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Cambridge, Spy Pond Full Record Details
PAC	Chamaedaphne calyculata (L.) Moench PAC0056008Harry E. Ahles   651871966-10-22 United States, Massachusetts, Middlesex, NE of Townsend, MA Route 13, below New Hampshire state line Full Record Details
PAC	Rhododendron canadense (L.) Torr. PAC0056915L. B. Smith   s.n.1939-05-29 United States, Massachusetts, Middlesex, Westford Full Record Details
PAC	Rhododendron canadense (L.) Torr. PAC0056916Harry E. Ahles   763821917-05-05 United States, Massachusetts, Middlesex, Maynard, 0.4 mile ESE of junction with MA Route 27 & 2 on MA Route 2 Full Record Details
PAC	Rhododendron viscosum Torr. PAC0056983R. C. Rollins   s.n.1940-07-25 United States, Massachusetts, Middlesex, Westford Full Record Details
PAC	Vaccinium angustifolium Aiton PAC0057408L. B. Smith   s.n.1941-05-01 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Vaccinium macrocarpon Aiton PAC0057459H. A. Ward   s.n.1921-09-23 United States, Massachusetts, Middlesex, Lake Winthrop Full Record Details
PAC	Baptisia tinctoria (L.) R. Br. PAC0058468L. B. Smith   s.n.1940-08-04 United States, Massachusetts, Middlesex, Woburn, Horn Pond Full Record Details
PAC	Cassia nictitans L. PAC0058611B. G. Schubert   s.n.1945-08-16 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Desmodium glutinosum (Muhl. ex Willd.) Alph. Wood PAC0058976B. G. Schubert   s.n.1938-08-09 United States, Massachusetts, Middlesex, Woburn, Horn Pond Hill, 42.467984 -71.161374 Full Record Details
PAC	Eurybia divaricata (L.) G.L. Nesom PAC0061002Harry E. Ahles   651431966-10-22 United States, Massachusetts, Middlesex, N of Fitchburg, junction of Mass. Rt. 119 and 31, 42.663795 -71.796315 Full Record Details
PAC	Eutrochium dubium (Willd. ex Poir.) E.E. Lamont PAC0061252L. B. Smith   11531930-09-10 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Gnaphalium uliginosum L. PAC0061488J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Alopecurus aequalis Sobol. PAC0069269M. L. Fernald   s.n.1930-06-03 United States, Massachusetts, Middlesex, Pepperell, 42.6661111 -71.5886111, 152m Full Record Details
PAC	Potamogeton crispus L. PAC0068882Walter Deane   s.n.1920-04-25 United States, Massachusetts, Middlesex, Charles River, marsh back of Stillman Infirmary, Cove, S end, Cambridge Full Record Details
PAC	Alisma subordatum PAC0069062H. K. Svenson   4121929-08-15 United States, Massachusetts, Middlesex, Bedford Full Record Details
PAC	Potamogeton robbinsii Oakes PAC0068991A. J. Eames   s.n.1913-06-23 United States, Massachusetts, Middlesex, Framingham Full Record Details
PAC	Pinus strobus L. PAC0068615H. E. Ahles   651761966-10-22 United States, Massachusetts, Middlesex, below New Hampshire State line, MA Route 13 Full Record Details
PAC	Bromus japonicus Thunb. PAC0069608L. B. Smith   13081945-06-21 United States, Massachusetts, Middlesex, Somerville Full Record Details
PAC	Aristida longespica Poir. PAC0069409M. L. Fernald   4251930-09-24 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Polygonum tenue Michx. PAC0084020L. B. Smith   6531935-10-11 United States, Massachusetts, Middlesex, Horn Pond Hill, Woburn Full Record Details
PAC	Carex bullata Schkuhr ex Willd. PAC0074399Walter Deane   231886-07-07 United States, Massachusetts, Middlesex, Concord Full Record Details
PAC	Cornus racemosa Lam. PAC0080110Ernest Rouleau   13771946-06-23 United States, Massachusetts, Middlesex, Woburn Full Record Details
PAC	Dichanthelium acuminatum (Sw.) Gould & C. A. Clark PAC0069965F. F. Forbes   s.n.1919-08-24 United States, Massachusetts, Middlesex, Framingham, E of center Full Record Details
PAC	Panicum oligosanthes Schult. PAC0070042Harry E. Ahles   804091975-07-05 United States, Massachusetts, Middlesex, NW Cambridge Full Record Details
PAC	Kochia scoparia (L.) Schrad. PAC0085303Harry E. Ahles   652781966-10-22 United States, Massachusetts, Middlesex, Shirley Full Record Details
PAC	Eragrostis peregrina Wiegand PAC0070367M. L. Fernald   5101931-07-27 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Mollugo verticillata L. PAC0085579D. E. Boufford   227671981-09-07 United States, Massachusetts, Middlesex, Weston, Case Estates of Arnold Arboretum, between 131 and 133 Wellesley Street, NW of intersection of School and Wellesley Streets, 65m Full Record Details
PAC	Eragrostis capillaris (L.) Nees PAC0070310M. L. Fernald   5091931-07-27 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Dichanthelium depauperatum (Muhl.) Gould PAC0070860D. L. Smith   s.n.1939-06-19 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Panicum rigidulum Bosc ex Nees PAC0070909L. B. Smith   4311928-08-29 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Muhlenbergia mexicana (L.) Trin. PAC0070769M. L. Fernald   13121930-09-24 United States, Massachusetts, Middlesex, Horn Pond Hill, Woburn Full Record Details
PAC	Ceratophyllum echinatum A. Gray PAC0072078A. N. Steward   s.n.1928-08-11 United States, Massachusetts, Middlesex, Long Pond, Tewksbury Full Record Details
PAC	Silene vulgaris (Moench) Garcke PAC0085950H. E. Ahles   676641967-07-07 United States, Massachusetts, Middlesex, Littleton Common, junction of Mass. Rts. 119 and Int 495 Full Record Details
PAC	Calluna vulgaris (L.) Hull PAC0080207Everett H. Thompson   s.n.1874-00-00 United States, Massachusetts, Middlesex, Tewksbury Full Record Details
PAC	Carex emmonsii Dewey ex Torr. PAC0074718Thomas Morong   s.n.1877-05-28 United States, Massachusetts, Middlesex, Melrose Full Record Details
PAC	Carex conoidea Schkuhr ex Willd. PAC0074537Walter Deane   s.n.1886-06-04 United States, Massachusetts, Middlesex, Cambridge, 42.375097 -71.105608 Full Record Details
PAC	Cerastium semidecandrum L. PAC0085683D. E. Boufford   56761972-06-02 United States, Massachusetts, Middlesex, Cambridge, Divinity Ave. Full Record Details
PAC	Carex exilis Dewey PAC0074742Thomas Morong   1461875-05-31 United States, Massachusetts, Middlesex, Melrose Full Record Details
PAC	Carex lurida Wahlenb. PAC0075275Walter Deane   s.n.1886-06-20 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Carex hirta L. PAC0074987Thomas Morong   s.n.1877-06-15 United States, Massachusetts, Middlesex, Ashland Full Record Details
PAC	Caltha palustris L. PAC0072269C. A. Weatherby   s.n.1931-05-11 United States, Massachusetts, Middlesex, Woburn, 42.488377 -71.151934 Full Record Details
PAC	Nymphoides cordata (Elliott) Fernald PAC0080982J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Tewksbury Full Record Details
PAC	Carex palacea PAC0075592Thomas Morong   681877-06-25 United States, Massachusetts, Middlesex, banks of Mystic River, Medford Full Record Details
PAC	Carex pallescens L. PAC0075598Thomas Morong   s.n.1876-05-28 United States, Massachusetts, Middlesex, Melrose Full Record Details
PAC	Carex pallescens L. PAC0075597E. T. Harper   s.n.1895-06-29 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Apocynum medium Greene PAC0081093H. E. Ahles   676001967-07-07 United States, Massachusetts, Middlesex, SE of Groton, 4.5 miles SE of junction of Massachusetts Route 40 and Route 119 on Route 119 Full Record Details
PAC	Carex muhlenbergii Kunth ex Boott PAC0075442Charles R. Marsh   s.n.1918-06-02 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Taxus canadensis Marshall PAC0094501John W. Harshberger   s.n.1890-07-15 United States, Massachusetts, Middlesex, Harvard Botanical Garden, Cambridge Full Record Details
PAC	Lamium amplexicaule L. PAC0081264L. B. Smith   s.n.1942-05-13 United States, Massachusetts, Middlesex, Harvard Botanic Garden, Cambridge Full Record Details
PAC	Ranunculus repens L. PAC0072904H. E. Ahles   675561967-07-07 United States, Massachusetts, Middlesex, Nashua River, Pepperell Full Record Details
PAC	Carex stricta Lam. PAC0076130Walter Deane   731886-06-04 United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Carex stipata Muhl. ex Willd. PAC0076092L. H. Bailey Jr.   s.n.1886-06-23 United States, Massachusetts, Middlesex, Concord Full Record Details
PAC	Carex salina var. kattegatensis (Fr.) Almquist PAC0075945J. W. Congdon   s.n.1877-06-02 United States, Massachusetts, Middlesex, West Medford Full Record Details
PAC	Cyperus erythrorhizos Muhl. PAC0076500M. L. Fernald   5231930-09-24 United States, Massachusetts, Middlesex, border of Winter Pond, Winchester Full Record Details
PAC	Cyperus diandrus Torr. PAC0076482J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Fresh Pond Full Record Details
PAC	Potentilla simplex var. calvescens Fernald PAC0078830C. A. Weatherby   s.n.1938-06-06 United States, Massachusetts, Middlesex, Arlington, 42.418162 -71.163309 Full Record Details
PAC	Potentilla norvegica L. PAC0078786H. E. Ahles   652041966-10-22 United States, Massachusetts, Middlesex, Nashua River on Massachusetts Route 113, vicinity of East Pepperell Full Record Details
PAC	Eleocharis obtusa (Willd.) Schult. PAC0076885J. R. Churchill   s.n.1902-07-10 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Gerardia tenuifolia Vahl PAC0082161Ernest Rouleau   13931945-09-03 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Scirpus torreyi Olney PAC0077597C. A. Weatherby   5261932-08-22 United States, Massachusetts, Middlesex, Concord, 42.460372 -71.348948 Full Record Details
PAC	Scirpus campestris Britton PAC0077537Ray E. Torrey   s.n.1916-10-01 United States, Massachusetts, Middlesex, Cambridge, Charles River Marsh Full Record Details
PAC	Scirpus atrovirens var. georgianus (Harper) Fernald PAC0077671L. B. Smith   s.n.1941-07-03 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Scirpus maritimus L. PAC0077501Ray E. Torrey   s.n.1916-10-01 United States, Massachusetts, Middlesex, Cambridge, Charles River Marsh Full Record Details
PAC	Sassafras albidum var. molle Fernald PAC0073224L. B. Smith   13501945-08-12 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Lindera benzoin (L.) Blume PAC0027988L. B. Smith   9531936-10-04 United States, Massachusetts, Middlesex, Shaker Glen, Woburn Full Record Details
PAC	Scirpus smithii A. Gray PAC0077379Fayette Fredrick Forbes   s.n.1921-08-19 United States, Massachusetts, Middlesex, Wayland, shore of Wayland Reservoir Full Record Details
PAC	Scirpus debilis Lam. PAC0077382F. F. Forbes   s.n.1906-09-15 United States, Massachusetts, Middlesex, Winchester, shore of Winter Pond Full Record Details
PAC	Linaria canadensis (L.) Chaz. PAC0082565L. B. Smith   s.n.1942-06-16 United States, Massachusetts, Middlesex, Arlington Full Record Details
PAC	Gratiola aurea Pursh PAC0082509L. B. Smith   11541930-08-31 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Sisymbrium loeselii L. PAC0073834H. E. Ahles   676161967-07-01 United States, Massachusetts, Middlesex, 2 miles E of Pepperell, on Mass. Rt. 113 Full Record Details
PAC	Thlaspi arvense L. PAC0073876D. S. Correll   114571941-06-15 United States, Massachusetts, Middlesex, Auburndale, Newton Full Record Details
PAC	Sisymbrium officinale (L.) Scop. PAC0073836H. E. Ahles   652151966-10-22 United States, Massachusetts, Middlesex, Nashua River on Mass. Rt. 113, vicinity of E Pepperell Full Record Details
PAC	Linnaea borealis L. PAC0083339J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Concord Full Record Details
PAC	Peltandra virginica (L.) Schott PAC0077796H. E. Ahles   675911967-07-07 United States, Massachusetts, Middlesex, 4.5 miles SE of junction of Massachusetts Rts. 40 & 119 on Mass. Rt. 119 (SE of Groton) Full Record Details
PAC	Lemna minor L. PAC0077848E. C. Ogden   17301937-10-03 United States, Massachusetts, Middlesex, Sudbury River, Concord Full Record Details
PAC	Crotalaria sagittalis L. PAC0079627L. B. Smith   11551930-08-31 United States, Massachusetts, Middlesex, Winter Pond, Winchester Full Record Details
PAC	Galium obtusum Bigelow PAC0083104Edwin B. Bartram   s.n.1907-07-14 United States, Massachusetts, Middlesex, Concord Full Record Details
PAC	Maianthemum racemosum (L.) Link PAC0086527L. B. Smith   s.n.1939-06-11 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Lathyrus palustris L. PAC0079819J. T. Rothrock   s.n. United States, Massachusetts, Middlesex, Cambridge Full Record Details
PAC	Acalypha virginica L. PAC0089045C. A. Weatherby   5641931-09-04 United States, Massachusetts, Middlesex, Belmont, Waverly Oaks, Beaver Brook Full Record Details
PAC	Cypripedium acaule Aiton PAC0087328R. E. Schultes   s.n. United States, Massachusetts, Middlesex, Townsend Harbor, Townsend Full Record Details
PAC	Salix pedicellaris var. hypoglauca Fernald PAC0087854M. L. Fernald   4481930-05-11 United States, Massachusetts, Middlesex, near Concord River, Bedford, 42.49065 -71.276169 Full Record Details
PAC	Comptonia peregrina (L.) J. M. Coult. PAC0087958L. B. Smith   10411940-06-16 United States, Massachusetts, Middlesex, Westford Full Record Details
PAC	Myrica pennsylvanica PAC0090008H. E. Ahles   652631966-10-22 United States, Massachusetts, Middlesex, between Graniteville and Forge Village Full Record Details
PAC	Euphorbia supina Raf. PAC0089310D. L. Smith   s.n. United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Triadenum fraseri (Spach) Gleason PAC0092390L. B. Smith   14491946-08-18 United States, Massachusetts, Middlesex, Medford Full Record Details
PAC	Lechea maritima Legg. ex Britton PAC0092458H. E. Ahles   652611966-10-22 United States, Massachusetts, Middlesex, vicinity of Westford Full Record Details
PAC	Hydrangea paniculata Siebold PAC0092848R. J. Eaton   s.n.1930-09-27 United States, Massachusetts, Middlesex, Lincoln, 42.4259 -71.3039 Full Record Details
PAC	Leontodon autumnalis L. PAC0071220H. E. Ahles   652641966-10-22 United States, Massachusetts, Middlesex, 2 miles E of Ayer Full Record Details
PAC	Ionactis linariifolia (L.) Greene PAC0071115L. B. Smith   s.n.1930-09-14 United States, Massachusetts, Middlesex, Winchester Full Record Details
PAC	Alnus incana (L.) Moench PAC0090152D. E. Moreland   s.n.1947-08-24 United States, Massachusetts, Middlesex, Tewksbury Full Record Details
PAC	Antennaria plantaginifolia (L.) Hook. PAC0083969Walter Diane   s.n.1910-04-23 United States, Massachusetts, Middlesex, Arlington, 1/2 mile E of Turkey Hill Full Record Details
PAC	Solidago canadensis L. PAC0071921C. A. Weatherby   s.n.1932-08-16 United States, Massachusetts, Middlesex, Sudbury, 42.383428 -71.416172 Full Record Details
PAC	Circaea lutetiana subsp. canadensis (L.) Asch. & Magnus PAC0094936Ernst Rouleau   s.n.1945-08-05 United States, Massachusetts, Middlesex, Winchester Full Record Details

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