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MEMOIRS OF THE NEW FORK BOTANICAL GARDEN 



[vol. 10 



pubescenti, lobis ad l.H nun lonuis utrinque reflexis, exterioribns anguste ovatis, 

 interioribus spathulatis, tubo ad 1 mm longo, pedicello ±1 mm longo; staminibus 

 sterilibus ser I & II ad 0.7 mm longis antheris filamenta robusta aequantibus, 

 ser III ovatis truncatis, ad 0.8 mm longis, antheris quam filamentis duplo 

 longioribus biglandulosis, ser [V 0; gynoecio ad 1.6 mm longis glabris, ovario 

 obovoideo quam stylo robusto longiori stigmate conspicue patenti. Infructescentia 

 et fructus ignotf. 



Type. Small tree, flowers yellowish, left fork east drainage of central drainage 

 canyon near east escarpment, Cerro Sipapo (Paraque) Amazonas, Venezuela, 

 1800 m, 14 Jan 1949, Maguire & Politi 28340 (holotype, J ? fl. NY). 



Distribution. A shrub or small tree to 2 m, with seemingly dioecious flowers 

 and "zig-zag,'' angled, silicate branchlets occurring at 1500-1800 m in the 

 drainage areas of Cerro Sipapo, Amazonas, Venezuela. VENEZUELA. Ama- 

 zonas: frequent near slope savanna between Savanna Camp and West Peak, 

 Maguire & Politi 27802 ($ fl. NY), infrequent on North Mountain, 28595 (J ? fl. 

 NY); Bolivar: infrequent in quebradas, lateral south drainage of "North 

 Valley," Cerro Guaiquinima, Rio Paragua. Maguire 32916 '(£ fl. NY). 



The last-cited specimen from Bolivar, except for the very small leaves, 

 blackish-pubescent beneath, and the blackish-pubescent branchlets, can not be 

 separated from the type material of Amazonas. Without more material from the 

 area, however, I hesitate to make a variety on these often variable characters. 



The general inflorescence-type of the species suggests a relationship with 

 Ocotea Jasseriana, from which it may be separated by a difference in venation, 

 the reticulation of the leaves of O. at rata very nearly equaling in prominence 

 and in some even obscuring the lateral nerves, which diverge at a broader angle 

 from the eosta than those of the former. 



There is a possible alliance with O. adenotrachelium (Nees) Mez, described 

 from the Poeppig collection made at Ega on the Solimoes River, Brazil. The 

 longer, very coriaceous, distinctly petiolate leaves of O. at rat a, however,- are not 

 cordate, but obtuse or rounded. The consistently more slender branchlets of the 

 former appear neither " zig-zag" nor sulcate. 



Ocotea nilssonii C. K. Allen, sp. nov. Fig. 50. 



Arbor ad 15 m alta, gemmis anguste tenuiterque ovoideis, griseo-pubescenti- 

 bus, ramulis juventute satis robustis conspicue striatis angulatis atro-rubescen- 

 tibus^'dense, minute, adpresseque fulvo-brunneo-pubescentibus mox teretibus 

 fulvo-rubescenti-maculosis, pubescentibus. Folia alternata, petiolis crassis minute 

 fulvo-rubescenti-pubescentibus valde canaliculatis, 10-15 mm longis et 2-3 mm 

 latis, laminis supra glabris subtus minutissime inconspicueque pubescentibus 

 percoriaceis, supra atro-viridescentibus subtus pallidioribus, saepe in sicco 

 glaucescentibus, oblongo-ellipticis 14.5-18 cm longis, 5-7 cm latis, ad basim 

 plerumque rotundatis ad apicem abrupte acuminatis vel aeutis, margine revolutis, 

 penninerviis, costa supra obscura leviter subtus conspicue elevata crassa brun- 

 nescenti fide coll., nervis 8-12-paribus supra obscuris subtus leviter graciliterque 

 elevatis, brunnescentibus ride coll., ad angulo 55° divergentibus, rete venularuni 

 ut videtur laxo, obscuro. Inflorescentia juvenilis axillaris subterminalisque, 

 minute adpresseque subferrugineo-pubescens stricte racemoso-paniculata, ad 6 

 cm longa, brevipedunculata. Flores immaturi ut videtur dioici £ ? ante anthesin, 

 perianthii lobis late ovatis, tubo ± indistincto ; staminibus ser I & II antheris 

 ovatis truncatis quam stylo crasso duplo vel plus lon^ioribus, ser III subquad- 



