Cotomara: [Comisaria del Caqueté, Rio Orteguaza], 1923, Claes 12, 
23, 24, 30. 
BOMBACACEAE 
Bombax sordidum PR. FE. Schultes sp. nov. 
Arbuscula parva, usque ad tres pedes alta, a Bombace 
coriaceo foliis coriaceoribus, majoribus, margine magno- 
pere revolutis, infra densissime et sordide pulveraceis cum 
pilis fulvis et fructibus aliquid majoribus differt. Flores 
adhue ignoti. 
The collection Schultes & Lopez 9342, first identified 
as Bombax coriaceum Mart. & Zucc., but shown by later 
studies to be distinct, represents one of the most curious 
species of the genus. Most closely allied to Bombawz cori- 
aceum, Which it resembles in its diminutive bushy habit, 
B. sordidum can be distinguished by its larger and much 
more coriaceous and more marginate leaves, which are 
densely clothed beneath with a very dark brown, dust- 
like indumentum, and by its larger capsules. 
The distribution of Bombax coriaceum as given by 
Schultes (in Bot. Mus. Leafl. Harvard Univ. 13 (1949) 
303) must be slightly modified to accord with this new 
disposition of the collection cited below. Bombaz coria- 
ceum is, so far as we now know, confined to cretaceous 
quartzitic areas in Amazonian Colombia and apparently 
does not occur, as does B. sordidum, on the proterozoic 
granitic shield. The two species are, however, very 
closely allied. 
Cotomspia: Comisaria del Vaupés, Rio Negro, El Castillo or San 
Felipe, near confluence of Rios Guainia and Casiquiare., Caatinga. 
““Low shrub, 3 feet tall. Leaves very coriaceous.’? December 12, 
1947, Richard Evans Schultes & Francisco Lépez 9342. 
STERCULIACEAE 
Herrania albiflora Gowdot in Ann. Sci. Nat., sér. 
3, 2 (1844) 230, t. 5, figs. 1-10. 
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