1963] 



BOTANY OF THE GUAYANA HIGHLANDS PART V 



263 



dental ; alt. 1900-2350 m ; tree about 8 m high ; 26 Feb, 2 Mar 1939, E. P. Killip 

 & Hernando Garcia 33877 (F, US) ; Quesemal Jagua, 23 Jan 1935, Perez 

 Arbelaez 3011 (US). 



A collection with completely glabrous and larger leaves is doubtfully referred 

 to this taxon. The heads of the inflorescence are too 3'oung for positive analysis. 

 The data for this specimen are as follows : Dept. El Valle : forest, on ridge of 

 Cordillera Occidental, La Cumbre ; alt. 2100-2400 m; tree; 11, 18 Sept 1922, 

 E. P. Killip 11384. In this specimen the leaves attain a length of 13 cm and a 

 width of 9 cm. 



Schradera bipedunculata Steyermark, sp. nov. 



Suffrutex volubilis ; stipulis caducis ; foliis petiolatis, petiolis 20-27 mm longis 

 glabris ; laminis subcoriaceis ovatis vel elliptico-ovatis apice subiter acutis vel 

 acuminatis basi obtusis vel subacutis plerumque 13-15.5 cm longis 5-8 cm latis 

 utrinque glabris. no- vis lateralibus utroque latere 10-12 robustioribus, 10-14 aliis 

 tenuioribus ab margine 5-8 mm anastomosin facientibus; capitulis 7-10-floris in 

 fructu 3-3.5 cm latis 2-2.5 cm altis; pedunculis 2 ad apices ramulorum 5.5-8.5 

 cm longis basi 2-3 mm latis apice paullo latioribus ad 4 mm latis glabris ; 

 involucro brevi 6-7 mm alto apice truncato ; calyce in fructu 3-4 mm alto ; 

 corollis non visis ; baccis in sicco 12-16 mm longo 8-10 mm lato. 



VENEZUELA. Estado Bolivar: montane woodland, Rio Uiri-yuk, Alto Rio 

 Cuyuni ; alt. 500-600 m; vine; fruit turning white; 20 Aug 1962, Bassett 

 Maguire, Julian A. Steyermark, & Cclia K. Maguire 46814 (holotype NY, 

 isoty'pe VEN). 



This species is characterized by having two slender, glabrous, rather elon- 

 gated peduncles, a shallow truncate involucre, and a relatively, few-fruited 

 infructescence. It is apparently most closely related to S. polycephala DC. of 

 British Guiana and to S. snaveolens (Karst.) Steyerm. of Venezuela. 



Schradera brevipes Steyermark, sp. nov. Fig. 78, J-L. 



Suffrutex volubilis ad 15 m ; stipulis conspicuis terminalibus aliter caducis 

 obovato-oblongis vel oblongis apice rotundatis 16-20 mm longis 7-10 mm latis 

 5-6 mm connatis ; foliis petiolatis, petiolis 10-18 mm longis, glabris; laminis 

 coriaceir ovato-oblongis vel ovatis acutis vel acuminatis, basi rotundatis vel 

 obtusis 9-13.5 cm longis 4.5-9 cm latis utrinque glabris, subtus costa media 

 elevata prominentique, nervis lateralibus utroque latere 9-10 ab margine 3-7 mm 

 arcuatam anastomosin facientibus; capitulis densifloris 9-10-floris depresso-hem- 

 isphaericis 10-13 mm altis 18-25 mm latis; pedunculo brevi solitario terminali 

 2.2-3.5 cm longo basi 3 mm lato apice ampliato ad 8 mm lato giabro ; involucro 

 7-10 mm alto apice repando ; calyce hypanthioque 8-10 mm longis basi 2.5 mm 

 latis apice 6 mm latis ; calyce plus minusve irregulariter undulato 6-lobato, lobis 

 breviter suborbicularibus apice rotundatis 1 mm altis 1.5 mm latis, ab ovario 

 ad 5 mm disjuncto ; corolla alba (teste Maguire <& Politi) 10 mm longa tubuloso- 

 campanulata, tubo 5 mm longo basi 4 mm lato 2 mm supra basin constricto intus 

 2 mm supra basin giabro aliter cum lineis puberulentibus instructis, lobis 6 

 lanceolatis apice acuto-inflexis erectis 5 mm longis 1.5-2 mm latis; staminibus 

 6 prope medium corollae insertis ; antheris lineari-oblongis 2.8 mm longis 0.7 mm 

 latis, filamentis 2 mm longis ; stigmatibus 2 oblongis ; ovario obovoideo 3-4 mm 

 longo 3-4 mm lato apice cum disco crasso undulato 1 mm alto coronato. 



