74 



.MEMOJRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



long. ; perianthii segmenta exteriora 5 mm long., 4 mm lat., late ovata, extra 

 fulvo-sericea, intra glabra; segmenta interiora 9 mm long., 4.5 mm lat., oblonga, 

 utrimque fulvo-sericea ; stamina 5.5 mm long., filamentis 4 mm long., antheris 1.5 

 mm long. ; serierum I et II filamenta dense pubescentia, antheris quadrilocular- 

 ibus; seriei III filamenta gracilia, pubescentia, glandulis subsessilibus ad partem 

 quintam basilarem filamentorum adnatis, antheris quadrilocularibus ; seriei IV 

 staminodia late sagittata, setis terminalibus instructa ; gynoecium sparse pu- 

 bescens, ovario globoso, supra sparse pubescenti, stylo 3 mm long., pubescenti, 

 stigmate peltato. Fructus ignotus. 



Type. Tree 10-15 m, buds tawny. ( ano Grande east of Cumbre Camp, Cerro de 

 Neblina, banks of Rio Yatua, Amazonas, 24 Nov 1957, Bassett Maguire, John J. 

 Wurdaek, & CeliaK. Maguire 42191 (holotype NY). 



Distribution. VENEZUELA. Amazonas: Cerro de Neblina, Clusia tangle just 

 S of Camp 3, 650 m, Maguire, Wurdaek, & Maguirt 12557. 



The leaf-shape, the short peduncles, the general appearance, and the distribu- 

 tion suggest a relationship to P. jenmani; but the large leaves with their ap- 

 pressed tawny pubescence, the large flowers, and the pubescent ovary readily 

 separate P. grandifiora from P. jenmani. 



Phoebe steyermarkiana C. K. Allen, sp. nov. Fig. 41 . 



Arbor ad 10 in alt., raro arbustum depressum, ad 3 m alt., gemmis robustis 

 ovoideis ± apiculatis dense ferrugineo-tomentosis, ramulis robustis juventute 

 adpresse ferrungineo-tomentosis, mox glabrescentibus atratis. Folia alternata 

 adscendentia, petiolis robustis ad apicem intumescentibus, brevibus, 3-5 mm 

 longis, breviter canaliculars tomentosis mox glabrescentibus, laminis supra atro- 

 virentibus glabris subtus argenteo-griseo-viridibus, e fulvo- ad ferrugineo- 

 brunneo-tomentosis, coriaceis late ovatis, ut videtur concavis, (5-) 10 (-11) cm 

 longis et (4.5-) 6-7 cm latis, margine recurvatis, ad basim cordatis vel raro 

 subrotundatis, ad apicem subrotundatis, obtusis vel emarginatis, penninerviis, 

 costa robusta, supra leviter subtus prominentei elevata, ad basim subite in- 

 tumescenti dense tomentosa, nervis 4-5-paribus supra glabris leviter subtus 

 tomentosis conspicue elevatis, 1-2 -paribus basilaribus descendenti-arcuatis, par- 

 ibus superioribus adscendentibus, ad angulo 70-35° divergentibus. Inflorescentia 

 robusta, axillaris vel subterminalis, ferrugineo-tomentosa, 5-6 cm longa, pedun- 

 culo et pedicello pallide viridi-ferrugineo-tomentosis. Flores hermaphroditi ad 

 5 mm longi pedicellati, dense tomentosi, lobis ellipticis vel ovatis ad 2.5 mm 

 longis, tubo ad 1.5 mm longo; staminibus ser I & II ad 1.8 mm longis, antheris 

 quam stylo satis robusto pubescenti leviter longioribus, ser III ovato-truncatis 

 biglandulosis, glandulis ovatis ad basim et fere filamenta pubescentia et stipitata 

 aequantibus, ser IV cordato-ovatis manif este stipitatibus ad 1 mm longis ; 

 <rvnoecio glabro, ad 3 mm longo, ovario leviter obovoideo quam stylo robusto 

 duplo longiori, stigmate conspicuo subtriangulari. Infructescentia crassa, glabra, 

 ad 6 cm longa. Fructus ut videtur viridis, ellipsoideus, 3x2 cm, cupula cyathi- 

 formi rugosa ± duplo-marginata marginibus subaequalibus ad 1.5 cm longa ad 

 marginem 3 cm lata, brevipedicellata, pedicellis robustis subtenta. 



Type. Tree 7-8 m, leaves concave, coriaceous, deep green above, silvery grey- 

 green below with fulvous- to ferruginous-brown tomentum, peduncles and 

 pedicels pale green with brown to ferruginous tomentum, locally frequent in 

 zanjones bordering rocky savanna above Upper Falls, between meanders of west 



