1958] 



THE BOTANY OF THE GUAYAXA HIGHLAND PART III 



149 



inaequalibus, coriaceis, 25-30 mm longis, 11-17 mm latis, oblongis, apice rotun- 

 datis (uno cucullato), externe strigulosis (saltern usque ad medium), intus 

 glabris ; petalum latoflabelliforme, 25-34 mm longum, 48-60 mm latum, externe 

 ad basim strigulosum ; stamina 10, unum liberum, filamentis alteris tubo 10 mm 

 longo cohaerentibus, filamentis ca. 50 mm longis, basaliter strigosis, antheris 

 8.5-9 mm longis, oblongis, glabris ; stigma bilobatum, eapitellatum ; stylus ca. 

 45 mm longus, glaber; ovarium oblanceolatum, 10 mm longum, 4.5 mm latum, 

 luteo-sericeum ; f ruetus ignotus. 



Type Collection: H. R. Kunhardt 20 (unicate, holotype NY), Angel Falls, 

 Edo. Bolivar, Venezuela. 



Unfortunately only a single sheet of this interesting species was collected, 

 but additional collections may be anticipated, since the type locality is visited 

 occasionally for its scenic beauty. 



The coriaceous, strongly venose leaflets are distinguishing characteristics of 

 the new species. It is related to E. falcata and to E. rubiginosa, perhaps most 

 closely to the former, from which it differs in having larger but fewer, more 

 coriaceous and venose leaflets, larger flower parts, and different pubescence on 

 many of the parts. 



Martiodendron elatum (Ducke) Gleason. 



Ugueto, Alto Orinoco, Terr. Amazonas, Venezuela, Oct 10, 1951, L. Croizat 820. 



A very large tree in the forest. As far as can be determined, this is the first 

 report- of this very interesting genus in Venezuela; although other species do 

 occur in the Guianas and northern Brazil, the genus is better represented in 

 the regions south of the Amazon River. 



Schizolobium amazonicum Huber ex Ducke. 



VENEZUELA: Bolivar: nearly leafless trees 7-15 m with viscid inflorescence and yellow 

 flowers, locally frequent on Piedra Mapollos 10 km above El Carmen on Rio Parguaza, elev. 

 250 m, Wurdaclc 4' Monachino 41080 ; eastern outlier of Cerro Marimarota (Cerro La Puerta), 

 elev. 250 m, Wurdaclc 4- Monachino 41378. 



This is the first record of this genus in Venezuela, although it has been col- 

 lected previously in Amazonian Colombia by Sehultes. It is not uncommon in 

 southern Brazil but it becomes increasingly unfamiliar to the north, excepting 

 occasional cultivated individuals. The collectors of this material have indicated 

 that the plant is frequent along the tributaries of the middle Orinoco River as 

 a natural component of the laja flora. 



Sclerolobium aureum (Tul.) Benth. 



VENEZUELA: Amazonas: occasional tree 5-8 m with yellow flowers and immature green 

 fruits, edge of gallery forest, 1 km east of Hotel Amazonas, Puerto Ayacucho, elev. 100 m, 

 Maguire, Wurdaclc, 4" Bunting 36183; Bolivar: savanna edge near Pilon 5 km N. E. of mouth 

 of Rio Parguaza, Wurdaclc 4~ Monachino 41136. 



This southeastern Brazilian species is best known in the States of Matto 

 Grosso and Minas Gerais and hardly known north of those areas. Only one 

 previous collection has been made in Venezuela ; Dr. Lasser collected the plant 

 in the State of Apure where he noted it as "very common" along the rivers. 

 These recent collections match authentic material of the species very well, al- 

 though the flowers in our collections are slightly larger. 



