1162 
THRYALLIS* brachystachys. 
Short-spiked Thryalls. 
DECANDRIA TRIGYNIA. 
Nat. ord. Mauricuiacex. § Hiptagec.. 
THRYALLIS \..—Calyx 5-fidus, inequalis, eglandulosus. Petala 5, 
unguiculata. Stamina decem. Ovariwm 3-loculare, tristylum. Pericar- 
pium siccum, triquetrum, triloculare, tripartibile, trispermum, calyce in- 
clusum. Frutices scandentes, pilis stellatis velutint. Flores lutez. 
T. brachystachys ; foliis ovato-lanceolatis subtus albidis, racemis paniculatis 
foliis subeequalibus. 
Rami scandentes, teretes, cineret, dense pubescentes. Folia opposita,: 
ovato-lanceolata, acuminata, bast subcordata dorso utrinque glandulosa, 
undique pilis stellatis velutine, supra glauca, infra albida. Stipule 0. 
Racemi paniculati, axillares et terminales, foliis haud multim longiores, 
undique densé velutini. Bractee subulate, decidue. Calyx irregularis, 
5-partitus, corolle fere longitudine, persistens, limbo sub anthesi revoluto. 
Petala 5, longé unguiculata, subrotundo-cordata, erosa, luteo-aurantiaca. 
Stamina 10. Ovarium ¢riloculare, tristylum. Pericarpium siccum, tnap- 
pendiculatum, calyce persistente inclusum, 3-loculare ; placentis 3 magnis, 
Sungosis. Semina...... 
The genus Thryallis is one of the most obscure in the 
science of Natural History. It was established by Linneus, 
upon a specimen which has never been seen by any other 
person, but to which he referred the rude wood figure in 
Marcgraaf, p. 79. f. 38. Sir James Smith could find no 
trace of it in the Linnean Collection. We are, therefore, 
fortunate in having an opportunity of describing a second 
species, which agrees well with the description of Linneus 
* Thryallis is an ancient Greek name for something of the Mullein kind, 
whose woolly leaves served to make wicks for lamps. It is not easy to con- 
ceive how Linneeus came to apply the name here, nor can we trace out any 
thing to account for his having done so. Smith in Rees. — Sprengel con- 
jectures the 9eveaals to have been the Verbascum lychnitis. Brachystachys 
signifies short-spiked. 
