mm. long, ciliolate at margin, caducous. Pedicel short, 
slender, 8-6 (10) mm. long, glabrous. Calyx tubular to 
tubular-campanulate, 8-12 mm. long, 8-8 mm. in di- 
ameter, glabrous, rarely striately veined, teeth subequal, 
triangular-ovate to ovate-lanceolate, 2-6 mm. long, acute 
to acuminate at apex. Corolla tube twice as long as 
calyx, straight, cylindric, inflated at apex, 20-24 mm. 
long, 1-8 mm. in diameter, glabrous; limb spreading, 
somewhat undulate, 15-22 mm. across, lobes subequal, 
oblong-obovate, abruptly reflexed at lateral margins, 
rounded-truncate at apex, 5-10 mm. long. Stamens in- 
cluded within upper part of tube; filaments subligulate, 
longer anterior pair 4 mm. long, shorter posterior pair 
3 mm. long; anthers orbicular-renitorm, slightly un- 
equal, the upper pair somewhat smaller, about 1 mm. in 
diameter. Ovary oblong-ovoid, 2 mm. long: style fila- 
mentous, a little broader and curved at apex, about 15 
mm. long: stigma briefly bifid, upper lobe slightly 
larger, 1 mm. long. Fruit and seed unknown. 
Disrrrpurion. Brazil (Amazonas, Para, Bahia); Guyana. 
AppITIONAL specIMENS. Brazit: Para: Faro, 22 Jan. 1910, Ducke 
s.n. (MG): Bella Vista, Rio Tapajoz, matta das immediacoes do 
Campina do Perdido, 12 Feb. 1917, Ducke s.n. (MG): Regiao do 
Jutahy de Almeirim. Palhal, 16 Apr. 1923, Ducke s.n. (RB); Gurupa, 
25 Feb. 1923, Ducke s.n. (RB); Parad, May 1819, Martius 3300 (M). 
AMAZONAS: Manaus and vicinity, road Manaus-Caracarai, km. 22, 
21 Mar. 1967, Prance et al., 4704 (WIS), Rio Negro, Cachoeira Baixa 
de ‘T'arumao, 11-14 Apr. 1973, Schultes & Rodrigues 26132-A (ECON), 
26188 A(ECON). Banta: Distrito Ileus, Ferradas, Dec. 1818, Mar- 
tius s.n. (M): Feira de Santana, Apr. 1850, collector unknown (G). 
Guyana: Essequibo-Demarara River, Madray-Bubu Trail, Topy 
Trysil Forest, 8 Feb. 1944, Forest Department 4422 (K). 
Brunfelsia Martiana is named for K.F.P. von Martius 
who first collected the plant in the year 1818. This new 
specific concept has proven difficult to define, not through 
its lack of distinctive characters, but due to the scarcity 
of specimens which are scattered in Brazilian and Euro- 
pean herbaria. 
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