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Matelea

Matelea
Family: Apocynaceae
Matelea image
Thomas Van Devender
  • VPAP
  • Gleason & Cronquist
  • Resources
JANAS 27(2)
PLANT: Perennial herbs or subshrubs, with vegetative parts more or less conspicuously hairy and frequently glandular. STEMS: twining or prostrate to strictly erect. LEAVES: opposite, in ours petiolate, ovate to lanceolate and mostly cordate at the base. INFLORESCENCE: 1- to several-flowered racemose, umbelliform, or irregular cymes, mostly sequentially blooming. FLOWERS: showy to rather small; corolla rotate to campanulate, mostly dull colored in shades of white, green, yellow or purple; crown extremely variable, in ours arising near the region of union of the corolla and filaments and more or less concealed by the corolla, ring- or cup-shaped and variously undulate to lobed or of 5 distinct, dorsiventrally flat to somewhat infolded segments opposite the anthers; anther head in ours subsessile or the column to 2 mm high, mostly disk- to funnel-shaped, the anther wings more or less curving down beneath the anther head; pollinia horizontal or less typically pendulous from the translator arms, with a sterile, hyaline area at the junction with the arm; stigma head flat to variously beaked. FOLLICLES: smooth, winged, or warty. NOTES: Ca 250 spp.; in warm temperate and tropical regions of N. and S. Amer. A taxonomically little-studied group exhibiting varied and perplexing elaborations of the crown, corolla, and stigma head, and often divided into several dozen segregate genera. REFERENCES: Sundell, Eric. 1994. Asclepiadaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 169-187.
Vascular plants of NE US and adjacent Canada
Cor deeply divided, its lobes strongly ascending to widely spreading, linear to elliptic, always much longer than wide; corona a flat disk or shallow cup, the latter shorter than to slightly surpassing the gynostegium; margin of the corona distinctly or obscurely 10-lobed; anthers with a short, broad, membranous terminal appendage, or the appendage virtually obsolete; pollinia solitary in each pollen-sac, pendulous or ±horizontally placed, with a slender attachment to the translator; perennial twining herbs with broad lvs deeply cordate at base, the fls medium-sized, in pedunculate extra-axillary cymes solitary at the nodes; our spp. all with short-hairy herbage. 125, New World, mainly tropical. (Gonolobus; Odontostephana; Vincetoxicum Walter, not Wolf)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within inventory project: Arizona Flora
Matelea balbisii
Media resource of Matelea balbisii
Map not
Available
Matelea parviflora
Media resource of Matelea parviflora
Map not
Available
Matelea parvifolia
Media resource of Matelea parvifolia
Map not
Available
Matelea producta
Media resource of Matelea producta
Map not
Available
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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