262 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 10 



28. Corolla 35-40 mm long, the tube 22-25 mm 



long; Cuba. S. cephalophora. 



28. Corolla 13-31 mm long, the tube 8-14 mm long; 

 Lesser Antilles, Puerto Eico, Dominican Re- 

 public. 



29. Anthers subsessile, the filaments 1 mm long; 

 flowers 7-merous; lower inner base of corolla- 

 lobe sparsely pilosulous; Dominican Republic. 



S. subsessilis. 

 29. Anthers on filaments 1.5-5 mm long; flowers 

 5-6-merous; corolla-lobe glabrous through- 

 out; Lesser Antilles, Puerto Rico, Dominican 

 Republic. S. vahlii. 



24. Lateral nerves of leaf -blades 9-13 on each side. 

 30. Peduncle 2.5-3.5 cm long. 



31. Calyx truncate or subtruncate; heads about 5- 

 flowered; corolla 18-21 mm long, the tube 9.5-10 

 mm long; Ecuador. S. campii. 



31. Calyx irregularly shallowly lobed; heads 9-10- 

 flowered; corolla 10 mm long, the tube 5 mm long; 

 Venezuela. - 8. brevipes. 



30. Peduncle (4-) 5-15 cm long. 



32. Lateral nerves on lower leaf surface prominent and 

 elevated, 13-18; collective nerve prominently ele- 

 vated and connecting ends of lateral nerves; 

 Colombia. S. marginalis. 



32. Lateral nerves on lower leaf surface obscure, not 

 prominent nor elevated, 8-11 ; collective nerve not 

 elevated, obscurely connecting ends of lateral 

 nerves; Guianas, Brazil. 

 33. Involucre about 12 mm long (high) ; lateral 

 nerves about 11; peduncle stout, 3-4 mm broad. 



S. Surinam ensis. 

 33. Involucre about 3-8 mm long -(high) ; lateral 

 nerves 8-10; peduncle slender, 2-2.5 mm broad* 



8. polycephala. 



Schradera acuminata Standi. Field Mus. Bot. 4 : 286. 1929 emendavit Steyermark 



An examination of the holotype specimen in US, and of flowering material of 

 additional specimens referable to this taxon necessitates an emended description 

 of Standley 's original publication as follows : 



Cost^, media folii laminae subtus partim pilosula aliter glabra, superficie 

 inferiori albo-papillata vel puncticulata ; capitulis 1.5-1.7 cm longis 2-2.5 cm 

 latis ; involuero glabro vel leviter pilosula 1.3-1.7 cm longo 2-2.5 cm lato ; corolla 

 in alabastro rotata 10-12 mm longa, tubo 4-5 mm longo basi 3.5-4 mm lato fauce 

 6 mm lata, lobis 5 ovato-oblongis obtusis 5-6 mm longis 3 mm latis; denticulo 

 cucullato reflexo triangulari ad basin carinae ab apicem 3 mm ; staminibus 5, 

 antheris linearibus in alabastro inclusis 4 mm longis; stylo 5 mm longo glabro; 

 stigmatibus 2 linearibus. 



In the holotype specimen the involucre is glabrous, but in Perez Arbelaez BMl 

 it is sparsely to moderately pilosulous. It is likely that more intensive collections 

 will reveal this taxon to be a ligneous vine rather than a "tree" as noted by 

 collectors. 



COLOMBIA. Dept. El Valle : forest, La Cumbre, Cordillera Occidental ; alt. 

 1800-2000 m; tree; 7-10 May 1922, F. W. Pcnnell 5146 (holotype US, isotype 

 F) ; dense forest j San Antonio, west of Cali, near summit of Cordillera Occi- 



