Home Flora of Panama (WFO)
Name Search
Markup OCR Documents
!!Rhynchosia Lour. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Project Name Data (Last Modified On 9/30/2013)
 

Flora Data (Last Modified On 9/30/2013)
Genus RHYNCHOSIA Loureiro
Contributor Muriel E. Poston
PlaceOfPublication Fl. Cochinch. 425, 460. 1790.
Note nom. conserv. TYPE: R. volubilis Lour.
Synonym Leycephyllum Piper, J. Wash. Acad. Sci. 14: 363. 1924. TYPE: L. micranthum Piper.
Description Herbs or subshrubs, twining or trailing, erect to ascending; stems terete to angular and striate. -Leaves trifoliolate, ovate to rhomboid, gland dotted above
Habit Herbs or subshrubs
Description and beneath; stipules caducous, striate, free; stipels reduced when present; pet- ioles 1.2-8.0 cm long, villous; petiolules 0.4-3.0 cm long, terminal petiolules longer than the laterals. Inflorescence racemose, axillary; bracts caducous or persistent, small, striate. Flowers with the calyx campanulate, the upper teeth at least partly connate; corolla papilionaceous, usually yellow with maroon mark- ings, the standard obovate, auriculate with a short claw, the wings oblong, not auriculate, the claw narrow, the keel falcate, wider than the wings, the claw attenuate; stamens diadelphous, the vexillary stamen free, the anthers mono- morphic; the style slender, the stigma entire, capitate, the ovary sessile, biovu- late. Fruits ovate to oblong, 2-valved, pubescent, gland-dotted; seeds 2 ovate, black often with some red, hilum lateral, ovoid to elongate.
Note Rhynchosia is a genus of several hundred species found in both the Old World and New World tropics. The genus has its greatest diversity in Africa.
Reference Grear, J. W. 1979. A revision of the New World species of Rhynchosia (Le- guminosae-Faboideae). Mem. New York Bot. Gard. 31(1): 1-168.
Key a. Calyx lobes 2-3 times longer than calyx tube; seeds never red. b. Stipules lanceolate to ovate, 0.3-1.0 cm long, 0.1-0.5 cm wide, terminal petiolules 2. 0-1 1. 0 mm long ...... 7. R. reticulata bb. Stipules linear to lanceolate, 1.5-3.0 mm long, ca. 0.5 mm wide; terminal petiolules 1.5-2.0 cm long ...... 1. R. calycosa aa. Calyx lobes equal to or not more than 2 times longer than calyx tube; seeds red and black. c. Seeds mostly less than 4 mm long ...... 4. R. minima cc. Seeds mostly more than 4 mm long. d. Plants viscid; stipules persistent; hilum linear ...... 2. R. edulis dd. Plants not viscid; stipules caducous; hilum ovate. e. Stipels absent; pods deeply constricted between seeds, glabrous to densely puberulous, shiny black with age ...... 3. R. erythinoides ee. Stipels present; pods not deeply constricted, densely puberulous, green or brown, never shiny black. f. Bracts lanceolate to ovate, 2.0-5.0 mm long; pedicels ca. 5.0 mm long ...... 6. R. quercetorum ff. Bracts lanceolate, 1.5-3.0 mm long; pedicels 1.0-2.0 mm long ...... 5. R. precatoria
 
 
© 2022 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110