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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 3 



paulo angustiora. Torus conicus, acutus, 2.5 mm altus. Stamina 2-2.5 mm longa. 

 Carpella in floribus masculis desunt. 



TYPE: VENEZUELA: Rio Negro, occasional on lower slopes of Piedra Nunca 

 (just north of Piedra Cucuy), elev. 100-150 m, Apr. 10, 1953, Bassett Maguire 

 & John J. Wurdack 34954 (Herb. Mus. Holm.). 



This new species belongs to section Eu-Ephedranthus R.E.Fr. though the 

 hairs on the flowers are remarkably short. It is especially characterized by the 

 quite glabrous young shoots and leaves and by the conical acute torus. Moreover 

 the leaves are acute at the base and distinctly decurrent. 



Guatteria robusta R.E.Fr., sp. nov. 



Arbor ramulis novellis tomentosis pilis patentibus ferrugineis densissime 

 vestitis. Folia fere sessilia; lamina rigida, discolor, supra obscure viridis, sub- 

 tus ferruginea, utrinque densissime verruculosa, supra ab initio glaberrima, sub- 

 tus pilis longis patentibus instructa, obovata, basin versus longe sensimque 

 angustata, apice in cuspidem ca. 1 cm longam contracta, ca. 25 cm longa et 12 

 cm lata; costa supra valde impressa, subtus cylindrico-prominens; nervi laterales 

 utrinque 20-25, validi, supra valde impressi, sub angulo fere 90° exeuntes, 

 pulchre paralleli, ca. 4 mm intra marginem arcubus curvatis conjuncti. (Flores 

 ignoti.) Monocarpia ellipsoidea, apice rotundata, basin versus in stipitem 4-5 mm 

 longum subito contracta, exsiccata nigra, rugulosa, 13-16 mm longa et 9-10 mm 

 diam. Semen nigrum, nitidum, striato-rugosum, hilum ca. 2 mm latum. 



TYPE: BRAZIL: Amazonas: Sao Paulo de Olivenca, with fruits, Apr. 1945, 

 R. de Lemos Froes 20788 (NY). 



Vernacular name: "Envira da mata." 



This species belongs to section Mecocarpus and is most nearly related to G, 

 microcalyx R.E.Fr. From this it differs by the patent hairs on the lower surface 

 of the leaves, and by the very dense ferruginous indument on the young shoots and 

 and nerves. The short, elliptic monocarps are also characteristic of the species. 



Guatteria maguirei R. E.Fr., sp. nov. 



Frutex vel arbor 4-6 m alta, dense ramosa; ramuli novelli exsiccati nigri- 

 cantes, pilis laxis instructi sed raox glabrescentes. Folia rigida, exsiccata oliva- 

 cea, subtus paulo pallidiora; petiolus 2-4 mm longa, supra leviter canalicular; 

 lamina supra glaberrima et lucida, subtus pilis longis patulis nonnullis instructa, 

 mox glabrescens, ovata, basi rotundata vel interdum brevissime acuta, apicem 

 versus longe caudato-acutata, 4-8 cm longa et 1.5-3 cm lata; costa supra basin 

 versus paulo impressa, subtus valde elevata; nervi laterales angulo ca. 80° 

 exefintes s reticulum densum formantes. Flores solitarii; pedicelli tenues 9 primo 

 pilis pallidis sparsis patulis instructi, mox glabri, 10-17 mm longi, ca. 4 mm 

 supra basin articulati, fructiferi ad 30-35 mm elongati. Sepalarotundaro-ovata, 

 ca. 3 mm longa et lata, extus sericea. Petala oblonga, apice obtusiuscula margini- 

 bus vulgo reflexis extus basin versus ferrugineo-sericea. Monocarpia numerosa, 

 ellipsoidea, basi et apice breviter acuta, glabra sed minute rugosa, castanea 8-9 

 mm longa et 4-6 mm lata, stipitibus 1.5-2 mm longis sustenta. 



TYPE: GUIANA: Cerro Yutaje, Rio Manapiare, Territorio Amazonas, occasional 

 along left fork of Cano Yutaje, elev. 1250 m, Febr. 12, 1953, Bassett Maguire & 

 Celia K. Maguire 35231, with fruits (Herb. Mus. Holm.). 



VENEZUELA: Rio Guaima, in Sabana El Venado on left bank of Cano Pimichin near 

 Pimichin, elev. 140m, April 14, 1953, Bassett Maguire & John J. Wurdack 35657, with 

 flowers. 



This species belongs to section Cephalocarpus R.E.Fr. and is closely related 

 to Guatteria venezuelana R.E.Fr. From this the new species differs in the shape 



