Navia Schultesiana L. B. Smith in Caldasia 12 
(1944) 131. 
Diagrammatic drawings of critical parts of the leaf, 
flowers and inflorescence were published with the re- 
cent description of this concept. In view of the appre- 
ciable contribution which the Apaporis collections have 
made to our knowledge of this very small genus, it seems 
advisable to publish the accompanying habit photograph 
of a complete colony of Navia Schultesiana. 
Pitcairnia patentiflora L. B. Smith in Contrib. 
Gray Herb. 127 (1989) 18, t. 1, fig. 4. 
A xerophytic species of sandstone exposures, Pitcair- 
na patentifiora is known only from the type locality, 
Mount Duida in Venezuela, and from Mount Chiribi- 
quete. 
Cotompia: Vaupés, Cerro Chiribiquete, a un lado del Rio Macaya, 
Hierba de hojas acaules y frutos rojos, Enero 17, 1944, G. Gutierrez 
672. 
Vriesia chrysostachys FH. Morren in Belg. Hor- 
tic. 31 (1881) 87. 
This species of Vriesta occurs in extraordinary abun- 
dance in rocky places under light forest in the creeks and 
brooks which drain the Cerros Pact, Cacuri and Circasia 
on the Vaupés River above Mitu. It is known from 
Trinidad to eastern Peru where the type was collected. 
CotombBia: Vaupés, Lower Vaupés River, Cafio Pacti near Tayast 
and Circasia, alt. 280 m., savannah, forming dense masses on rocks, 
March 6, 1944, R. E. Schultes 5826. 
Vriesia socialis L. B. Smith sp. nov. 
Verisimiliter acaulis, ad 5 dm. alta; foliis ignotis; 
scapo recto, 6 mm. diametro, glabro; scapi bracteis erec- 
tis, quam internodiis bene brevioribus, ellipticis, acutis, 
membranaceis, obscure punctulato-lepidotis; inflores- 
centia erecta, simplicissima, laxissime secundeque 6—7- 
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