1957] 



THE BOTANY OF THE GUAYANA HIGHLAND— PART II 



351 



glabrae; carina rum petala longo-unguiculata (ca. 20 mm), lamina 15 mm longa et 

 5 mm lata minute uncinata extus, intus glabra. Staminorum fila menta 38 mm longa, 

 connata per 33 mm, glabrum, antherae 2.5 mm longae, 0.5 mm latae, lineares. 

 Stylus 25 mm longus, ovarium 12 mm longun, 1 mm latum, lineare, sericeum, 15- 

 ovulatum, gynonhoro 8 mm longo, piloso. Fructus ignotus. 



TYPE: virgate shrub 2 m tall. Calyx reddish; banner pale lilac, basally with 

 fine red-purple lines; keel and wings white; frequent in dry part of savanna on 

 right bank of Rio Pacimoni 50 km above mouth, 100-140 m elev., Terr. Amazonas, 

 Venezuela, Feb. 7, 1954, Bassett Maguire, John ]. Wurdack & George S. Bunting 

 37580 (NY). Paratype: shrub 1.5-2.5 m tall. Occasional in savanna on left bank 

 of Cano Hechimoni 8 km above mouth, 100-130 m elev., Terr. Amazonas, Vene- 

 zuela, Feb. 1954, Maguire, Wurdack & Bunting 37635. 



The probable nearest relative of C. cerifera is another arborescent species — 

 C. arborescens. However, the new species is readily distinguishable by the very 

 different venation of the leaflets, the ceriferous and nearly glabrous undersurfaces 

 of the leaflets, the smaller bracteoles and larger standard. 



POLYGALACEAE 



Securidaca ecristata Wurdack, sp. nov. 



Frutex scandens; ramuli teretes, aeque cum petiolis inflorescentiis pedicel- 

 lisque modice persistenterque hirsutuli. Folia elliptica vel leviter ovato-elliptica 

 apice acuta vel anguste obtusa basi late acuta vel anguste obtusa sub inflores- 

 centiis 3-5 x 2.5-3.5 cm apud inflorescentias minora, coriacea, marginibus sparsis- 

 sime hirsutulis leviter revolutis, supra vix nitida vel nitidula costa basi extrem- 

 aque sparse hirsutula alioqui (marginibus exceptis) glabra subtus manifeste pal- 

 lidiora sparse vel modice aureo-strigulosa, costa supra impressa subtus elevata, 

 nervis primariis utrinque 7-9 supra et subtus leviter elevata inconspicue laxeque 

 reticulata; petiolus gracilis 5-7 mm longus basi glandulis inconspicuis. Paniculae 

 terminates laxae parvae ramis 2-4 cm longis; bracteae inconspicuae 1-1.5 mm 

 lengae valde caducae. Pedicelli 5-6 mm longi. Sepala exteriora ovato-orbicularia 

 extus modice strigulosa ciliolata intus glabra vel ad basim extremum sparse 

 strigulosa; posticum 3.8-4.2 x 3.5 mm; dua antica 3-3.2 x 2.8-3.5 mm; alae ungue 

 2 mm longo extus glabro vel sparse hirsutulo intus sparse hirsutulo, lamina ovato- 

 orbicularia 5-5.5 x 5.5 mm leviter emarginata ciliata aliocrui glabra. Petala later- 

 alia oblonga vel leviter spathulato-oblonga rotundata 6.5-7.2 x 2.5-2.9 mm basim 

 versus sparsissime ciliolata intus parte tertia basali sparse hirsutula aliocui 

 glabra dente laterali inconspicuo; carina tota 6.5-7 mm longa ungue 2-2.5 mm 

 longa ciliata intus marginem basalem versus sparse hirsutula alioqui glabra crista 

 nula (dente parvo simplico ad apicem carinae 0.1-0.3 mm longo). Staminum 

 vagina 5-5.2 mm longa extus marginem versus et per costam hirsutula intus 

 marginem versus parte centralique hirsutula; filamenta libera 0.3-0.5 mm longa; 

 antherae 0.8-1 mm longae ellipticae rotundae. Ovarium glabrum ala strigulosa 

 stipite 0.5-0.7 mm longo; stylus leviter curvatus glaber 4-4.5 x 0.6 mm. Fructus 

 3.2-3.7 cm longus sparse strigulosus parte seminifera 6-7 mm diametro vix reti- 

 culata; ala prima 2-2.8 x 1.3-1.6 cm margine exteriore recta vel vix curvata interiore 

 leviter recurvata; ala secunda subparva 4-7 x 2-3 mm parte 2-4 mm terminali 

 libera. 



HOLOTYPE: woody vine, sepals pale purple, keel yellow, cumbre near Summit 

 Camp. Cerro Huachamacari 5 Rio Cunucunuma 2 Terr. Amazonas, Venezuela 5 elev. 

 1800 m, Dec. 6 9 1950, Maguire, Cowan & Wurdack 30009 (NY). Paratypes: woody 

 vine, lvs coriaceous, fls purple-red,, occasional in cumbre near Summit Camp. 



