This topotypical material of Vellozia Dumitiana repre- 
sents the fifth collection of this curious shrub, all from 
Cerro [sibukuri, where the species appears to be a very 
restricted endemic. 
Cotomsi1a: Comisaria del Vaupés, Rio Kananari, Cerro Isibukuri. 
General location: Lat. 0°15’ N, Long. 70°35’ W. Quartzite base. At 
summit of mountain. January 23-25, 1952, Richard Evans Schultes & 
Isidoro Cabrera 150504. 
Vellozia lithophila R. H. Schultes in Rev. Acad. 
Col. Ciéne. Exact., Fisico-Quim. Nat. 8, no. 82 (1952) 
459. 
Reported hitherto from savannahs at San José del 
Guaviare and Yapoboda, Vellozia lithophila, through the 
first two collections cited below, is now known to be 
more widely distributed in the Colombian Vaupés. 
Cotomsia: Comisaria del Vaupés, Rio Kubiyi (tributary of Rio 
Vaupés), Cerro Kafiendé. Savannahs about 15 miles upstream from 
mouth. Quartzite base. Alt. about 800-900 feet. ‘‘“Very common on 
savannah. Height up to 6 feet.’? November 10, 1952, Richard Evans 
Schultes & Isidoro Cabrera 18317.—Comisaria del Vaupés, Rio Parana 
Pichuna (tributary of Rio Vaupés), Alt. about 700 feet. General lo- 
cation: Lat. 1°10’ N, Long. 70°30/ W. June 1953, Schultes & Cabrera 
19945.—Comisaria del Vaupés, Rio Kuduyari (tributary of Rio Vaupés), 
Yapoboda. Quartzite savannah near headwaters. Alt. about 900-1000 
feet. General location: Lat. 1°20’ N, Long. 70°30’ W. ‘“Gnarled 
shrub 6 feet tall, branched.’’ April 1953, Schultes § Cabrera 20019. 
MyRIsTICACEAE 
Virola calophylla Warburg in Nova Acta Acad. 
Leop.-Carol. 68 (1897) 2381. 
This species is known from Amazonian Brazil and ad- 
jacent parts of Colombia, Peri and Venezuela. Prior to 
the collection of the material cited below, the species 
was recorded from Colombia only from the region of 
Villavicencio in the Orinoco drainage-area. It is, how- 
ever, quite common in the Colombian Amazonia. 
CotomprA: Comisaria del Amazonas, Rio Apaporis, Soratama, entre 
el Rio Pacoa y el Rio Kananari. Alt. about 250 m. June 26, 1951, 
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