1963] 



BOTAXY OF THE GUAYANA HIGHLANDS PART V 



79 



pubeseentibus longioribus; ser III ad 1.5 mm longis, truneato-ovatis quam 

 filamentis pubeseentibus duplo longioribus, ser IV ad 1 mm longis triangularibus 

 stipitem pubescentem aequantibus ; gynoeeio glabro ad 2 mm longo, ovario ovoideo 

 quam stylo satis erasso leviter longiori, stigmate eonspicue ± lobato. Infruetes- 

 centia robusta, glabreseens, ad 7 cm longa, brunneseens. Fructus viridis fide coll., 

 ellipsoideus, utrinque obtusus, apiculatus, ad 3 X 2 cm, cupula cyathiformi 1.5-2 

 cm longa et 1.7 cm diametro, rubro-brunnea fide coll., stipite obconico crasso 

 ad 1 cm longo ad apicem 8 mm diametro, pedicello satis robusto 4-8 mm longo. 



Type. Tree 10 m, flowers white, banks of Canon Grande River, SSW of 

 Cumbre Camp, Cerro de la Neblina, Rio Yatua, Amazonas, Venezuela, 1100 m, 

 24 Dec 1957, Bassett Maguire, John J. Wurdack d- Celia K. Maguire 42482 

 (holotype, fl. NY). 



Distribution. Usually a tree up to 10 m, with rather short, densely or loosely 

 flowered, fulvo-sericeous inflorescence, the flowers large, densely pubescent, oc- 

 curring at about 1100 m along river banks on Cerro de la Neblina and possibly 

 in sabanas of the Siapa River region, Amazonas, Venezuela, at low altitudes. 

 VENEZUELA. Amazonas: from type locality, Maguire, Wurdack & Maguire 

 42483 (fr. NY). 



Possibly a variety of this species from the same region is the following : 

 Wurdack & Adderley (3622 (fl. NY), a spindly shrub or tree 2-7 m, occasional 

 in Sabana Hechimoni. This differs from the above in bearing leaves from 7-8 cm 

 on upper branches to 15-18 cm in length, the leaf-bases rounded or obtuse, and 

 somewhat larger flowers, seemingly collected at a more advanced stage of develop- 

 ment than those of the type. The floral structure, however, is the same. 



Ocotea sericiflora is associated with the O. aciphylla complex, the most notice- 

 able differences being in the larger flowers and the usually larger leaves more 

 pronouncedly recurved at their bases. 



Ocotea maguireana C. K. Allen, sp. now Fig. 46. 



Arbor 8 mm, gemmis gracilibus ramulis attenuatis fulvo-pubescentibus sub- 

 striatis teretibus subferrugineo-pubescentibus, mox glabris rubescentibus. Folia 

 alternata, petiolis gracilibus adpresse pubeseentibus, mox crassis glabris atratis, 

 canaliculatis. ad 20 mm longis et 2.5 mm latis, laminis supra glabris subtus sericeo- 

 ferrugineo-pubescentibus, subcoriaceis ellipticis vel ovato-ellipticis, (5-) 12 (-15) 

 cm longis et (2.5-) 6-7 cm latis. ad basim acutis vel subrotundatis, ad apicem 

 graciliter acuminatis, saepe acumine ad 2 cm longo, penninerviis, costa supra 

 impressa subtus satis elevata, nervis ± 4-paribus gracilibus, supra ± inconspicuis 

 subtus leviter elevatis atratis, regulariter ad angulo 35° divergentibus, rete 

 venularum juventute supra minute areolato mox utrinque inconspicuo. Inflores- 

 centia axillaris subterminalisve, satis gracilis subferrugineo-sericeo-pubescens, ad 

 apicem cinerea, multifloro-paniculata, pedunculo 2-3 mm longo. Flores herma- 

 phroditi, ad 5 mm longi, pedicellati ; perianthio campanulato eburneo aliquantum 

 carnoso cinereo-pubescenti, lobis ovatis obtusis pubeseentibus ad 2 mm longis, 

 tubo ad 1 mm longo ; staminibus ad basim pubeseentibus, ser I & II ad 1.5 mm 

 longis, filamentis gracilibus, antheras oblongo-ovatas leviter apiculatas aequan- 

 tibus, ser III antheris quadrangularibus, filamentis biglandulosis, glandulis 

 stipitatis aequantibus, ser IV gracilibus ad 1 mm longis pubeseentibus aliquantum 

 graciliter stipitatis cordato-capitatis ; ovario ovoideo, glabro, stylo gracili 

 aequanti, stigmate conspicuo triangulari. Fructus ignotus. 



Type. Tree 8 m, flowers cream, frequent along banks of Canon Grande east 



