northeastern Argentina (Misiones). In the central part 
of its range, where it occurs most commonly, this species 
seems to be associated with the formerly extensive 4 rau- 
caria forests of the south Brazilian planalto. 
Owing to its attractive flowers, this plant is cultivated 
in tropical gardens, although not so extensively as Brun- 
felsia australis. Recently, B. pilosa has appeared in the 
Florida nursery trade and iS increasing in importance as 
an ornamental. 
Brunfelsia pilosa may be distinguished from related 
species by its very short (1-8 mm. long), stout pedicels 
and an inflated tubular calyx with deeply cut teeth 
(4-10 mm. long). The twigs, leaves and calyx charac- 
teristically contain few to many long, weak trichomes. 
The flowers are large and showy with a corolla limb 
nearly 5 cm. in diameter. 
LITERATURE CITED 
Bentham, G. m A. DeCandolle, 1846. Prodromus Systematis Natu- 
ralis Regni Vegetabilis. 10: 200. 
Lanjouw, J. and F.A. Stafleu, 1964. Index Herbariorum. 5th Fd. 
Regnum Vegetabile Vol. 31. International Bureau for Plant Tax- 
onomy and Nomenclature, Utrecht. 
Plowman, T. 1978. The South American Species of Brunfelsia (So- 
lanaceae). Doctoral Dissertation, Harvard University, Cambridge, 
Massachusetts. 
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