1961] 



BOTANY OF THE GUAYANA HIGHLANDS PART IV (2) 



3 



Ilex savannarum Wurdack, sp. nov. Fig. 23, A-E. 



I. retusae Kl. ex Reiss. affinis sed inflorescentiis plerumque fasciculatis et 

 floribus racemosis. 



Frutex 1-3 m. Ramuli ascendentes primum brunnei demum cinereo-brimnei 

 glabri. Stipulae mox deciduae anguste triangulares 0.2 mm longae; petioli dis- 

 tincti vix evoluti 1-3 mm longi; lamina (2.5-) 4.5-6 X (1-) 1.5-2.5 (-3) cm 

 anguste obovata apice rotundata vel parce retusa basi cuneata et in petiolo 

 deeurrens glabra coriacea subtus modice punctulata ad margines obscure crenato- 

 serrulata serratulis distantibus utrinque 5-8, nervis lateralibus supra in matu- 

 ritate non evolutis subtus obscure elevatis principalibus utrinque 5-7 ad mar- 

 gines obscure anastomosantibus. Inflorescentiae S in foliorum axillis (l-)3-oo- 

 fasciculatae racemosae 1-2 cm longae pedunculo communo nudo non evoluto 

 singulae (3-)7-12-florae glabrae prophyllis 0.5-0.6 mm longis triangularibus 

 acutis; pedicelli ca. 1.5(-2) mm longi; flores 4-meri; calyx ca. 1.2-1.5 mm diam. 

 glaber lobis ca. 0.4 X 0.8 mm late rotundatis ad margines ciliolatis; corolla 1.8 

 mm longa ad 0.5 mm coalita ; filamenta 1 mm longa ; antherae 0.8 mm longae ; 

 pistillodium 1 mm diam. conicum apiculatum. Inflorescentiae 9 ut in $ vel in 

 ramulis hornotinis lateralibus foliatis vel non-foliatis singulae, racemis singulis 

 usque ad 9-floris et ad 2 cm longis; pedicelli floriferi ca. 1.5 mm longi, fructiferi 

 submaturi usque ad 4 mm; flores 4-meri; calyx ad anthesim ca. 1.7 mm diam. 

 (fructiferus ca. 2.5-3.5 mm diam.), lobis 0.9 X 1-8 mm late rotundatis ad mar- 

 gines ciliolatis ; corolla 2.2-2.3 mm longa et ad 0.5-0.6 mm coalita ; filamenta 0.5 

 mm longa; antherae 0.5-0.6 mm longae, ovarium conicum; stigma 0.7 mm diam. 

 vix supra ovarium elevatum; drupa sphaeroidea 5 mm diam. cum stigmate vix 

 elevata 4-pyrena, pyrenis ca. 4 mm longis 3-gonis. 



VENEZUELA: Amazonas: Rio Guainia, $ flowers white; frequent in Sabana El Venado 

 on left bank of Cano Pimichm above Pimichm; alt. 140 m; 14 Apr 1953, Magaire 4' Wurdaclc 

 35617 (holotype, NY). Maguire $ Wurdaclc 35616; Maguire, Wurdaclc # Bunting 36349; 

 Maguire, Wurdaclc $ Keith 41823 (paratypes; all 9, from Sabana El Venado). 



The 6 flowers of I. retusa are in 3-flowered or compound dichasia with a 

 definite peduncle; usually the inflorescences are puberulous and the leaf crena- 

 tions much more distinct than in the Sabana El Venado endemic. The other 

 crenate-leafed species of Ilex with panicles of racemes (cf. I. martiniana Don) 

 have much longer leaves. The various 9 collections of /. savannarum show 

 stages in inflorescence reduction from singly-borne flowers on short leafy 

 branches through such flowers on non-leafy bud-terminated branches to race- 

 mose inflorescences. I. savannarum has the same habit as I. clivaricata Mart, ex 

 Txeiss.. which also is found in Sabana El Venado. 



Ilex yutajensis Wurdack, sp. nov. Fig. 24, D-F. 



Ex descr. I. loretoicae Loes. affinis sed foliis minoribus venis subtus vix 

 reticulatis. 



Frutex 2 m, glaber. Ramuli crassi i.s. longitudinaliter striato-sulcati. Petioli 

 7-9 mm longi 2.5-3 mm crassi; stipulae 0.9 X 0.6 mm triangulares apice parce 

 acuminatae; lamina (6-) 7-9 (-10.5) X (4-) 5-6 (-6.5) cm apice rotundata 

 vel subretusa (raro subobtusa) basi rotundata crasse coriacea ad margines 

 remote (utrinque 5-7) sed distincte crenulato-serrulata supra nitidula subtus 

 opaca et modice punctulata, venis lateralibus utrinque 5-7 supra plerumque 

 indistincte insculptis subtus subelevatis ad margines arcuato-connectis sed vix 



