6 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[vol. 10 



lower leaf surface and glabrous ovaries; it is represented on Neblina by Maguire, 

 Wurdack & Bunting 37157 and 37192, as well as Maguire, Wurclack & Maguire 

 42098. The Xeblina collections have leaves generally more elliptic than in the 

 unicate Duida holotype; in all collections, the lower leaf surfaces are sparsely 

 punctate. The male inflorescences of I. venezuelensis are predominantly 1- 

 flowered and only occasionally 3-flowered. 



Other species with entire, more or less hairy leaves and the general aspect 

 of 7. maguirei, but with epunctate leaves, are 7. asperula Mart, (with 3-7- 

 flowered 6 inflorescences, glabrous pistillodia, and leaves pubescent above only 

 on the midrib), I. organensis Loes. (with 3-flowered 9 inflorescences), 7. 

 velutina Mart, (with 3-7 -flowered 9 inflorescences), I. subcordata Reiss. (with 

 glabrous fruit and lateral leaf veins prominulous beneath), and I. rimbachii 

 Standi, (with longer pubescence, developed lateral leaf veins, larger 9 flowers, 

 and fruit with sessile stigma). 



Ilex cowanii "Wurdack, sp. nov. Fig. 24, A-C. 



I. hippocrateoidei II.B.K. affinis sed ramulis novellis et inflorescentiis minute 

 hirtellis, foliis subtus punctatis, et pedunculis longioribus. 



Arbor 18 m. Hamuli longitudinaliter striato-sulcati novelli cum pedunculis 

 pedicellis calycibusque sub lente minute modiceque hirtelli. Petioli 5-8 mm 

 longi; stipulae triangulares 0.5 mm longae ; lamina (3-)4.5-6(-7) X 2-3(-3.5) 

 cm elliptica apice acuta vel anguste obtusa et mucronulata basi acuta ad 

 margines calloso-serrulata serratulis appressis plerumque 2-3 mm inter se 

 distantibus in venulatione I. hippocrateoidei similis subtus modice punctulata 

 subcoriacea. Inflorescentiae S in foliorum axillis vel ad lignum novellum soli- 

 tariae 1-vel plerumque 3-florae; pedunculi 6-11 mm longi bracteis triangularibus 

 ca. 0.5 mm longis; pedicelli ca. 3 mm longi. Flores 6 plerumque 4-meri rare 

 5-meri ; calycis lobi singuli 2.3 X 2.3 mm apice rotundati vel truncato-rotundati 

 ad margines ciliolati ; petala 4.5-5.3 X 3-3.7 mm oblongo-ovata apice rotundata 

 ad 1.4-1.9 mm coalita. Filamenta 1.5-1.8 mm; antherae 1.5-1.8 mm longae. 

 Pistillodium depresso-conicum ca. 1.2 mm diam. et 1 mm altum rostro apicali 

 ca. 0.4 mm alto. Flores 9 et fructi ignoti. 



VENEZUELA: Amazonas: Cerro Huachamacari, Rio Cunucunuma, infrequent in dense 

 woodland along right fork of Caho de Dios above Summit Camp ; alt. 1800 m ; flowers white 

 and faintly fragrant; 13 Dec 1950, Maguire, Cowan $ Wurdack 30187 (holotype, NY). 



7. hipifocrateoides has glabrous branchlets and inflorescences, epunctate 

 leaves, and generally longer more slender peduncles. Another apparent near- 

 relative of 7. cowanii is 7. myricoides H.B.K., with less dense leaf vein reticula- 

 tion and more distinct marginal crenation, as well as smaller male flowers. 

 7. boliviana Britt. has leaves with veins above much more prominent and with 

 more distinct marginal crenation and also $ inflorescences 7-31-flowered with 

 much smaller flowers. 7. truxillensis Turcz. has proportionately narrower leaves 

 with more distinct marginal crenulations and much smaller flowers. 



♦ OCHNACEAE 



In his doctoral thesis, 2 unfortunately unpublished, Dwyer discussed at length 

 the relationship of the genera of the Luxemburgieae (all American except 

 Fleurydora of Africa). Dwyer suggests that the several genera of the tribe 



2 Dwyer, John D. The American species of the Luxemburgieae (Ochnaeeae), unpublished 

 thesis in biology, Fordham University, 1941. 



