var. patentiflora 
Plant 0.5-1 m. high; leaf-blades scarcely or not at all 
narrowed toward the base, 3-15 mm. wide, serrate for 
most of their length with spines 2 mm. long; sepals 15— 
20 mm. long. 
The type of the species is from Venezuela. Other 
material from Venezuela and Amazonian Brazil shows 
little variation from it. 
Cotompra : Comisaria del Vaupés, near Cerro Monachi, Rio Naquieni, 
Rio Guainia basin, June 1948, Richard Evans Schultes & Francisco Lopes 
10082. 
var. subintegra L. B. Smith var. nov. 
Laminis foliorum ad basin distincte angustatis, ad 20 
mm. latis, basi excepta integris, sepalis 13-18 mm. lon- 
gis differt. 
Co_omspia: Comisaria del Vaupés, Rio Kananari, Cerro Isibukuri. 
October 29, 1951, Richard Evans Schultes & Isidoro Cabrera 14532 (Typr 
in U.S. Nat. Herb. No. 2087660).—Comisaria del Vaupés, Rio Ma- 
caya, Cerro Chiribiquete, January 17, 1944, G. Gutiérrez 672,—Com- 
isaria del Vaupés, Cerro Yapoboda, Rio Kuduyari. On quartzite rocks, 
savannah. Alt. 450 m. October 5, 1951, Schultes & Cabrera 14214.— 
Comisaria del Vaupés, near headwaters of Rio Kuduyari (tributary of 
Rio Vaupés). Quartzite savannah. Alt. 270-300 m. Lat. 1°20/ N, 
Long. 70°30! W. April 1953, Schultes & Cabrera 20009. 
var. macrantha L. B. Smith var. nov. 
Planta ad 2 m. alta, laminis foliorum ad basin distincte 
angustatis, ad 25 mm. latis, basi excepta integris, sepalis 
25 mm. longis differt. 
Cotomsra: Comisaria del Vaupés, Rio Macaya, Cerro Chiribiquete. 
Sandstone ledges. Alt. 630 m. July 24, 1943, Richard Evans Schultes 
5613 (Tyre in U.S. Nat. Herb. Nos. 1902474 and 1989361). 
Pitcairnia turbinella L. B. Smith in Caldasia 1, 
no. 4 (1942) 18, t. 5. 
Described from Cireasia, on the Rio Vaupés, and from 
San José, on the Rio Guaviare, Piteairnia turbinella is 
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