Mr. J. Miers on the genus Browallia. 205 



augescens et persistens. Corolla hypocraterimorpha, tubo an- 

 gusto^ cylindrico, calyce 2-3-plo longiore, superne et antice 

 ventricoso, fauce in oram elevatam constricto^ limbo obliquo, 

 piano, breviter 5-partito, lobis rotundatis, emarginatis, insequa- 

 libus, rarius oblongis, acutis, antico paulo majore, sestivatione 

 reciprocativa ? Stamina 4, didynama^ inclusa ; filamenta brevia, 

 2 antica inferiora, sublongiora, hemicyclice curvata, imo dila- 

 tata, apice expansa, inflexa et pilosa ; antherce sagittato-bilobse, 

 inversae, lobis ovatis, rima marginali dehiscentibus^ superiorum 

 lobo altero minimo casso. Ovarium obovatum, apice pilosum, 

 inferne glaberrimum, ssepe stipitatum, rarius omnino glabrum, 

 2-loculare, placentis carnosis prominulis dissepimento utrinque 

 adnatis, multi-ovulatis. Stylus simplex, apice incrassatus, in- 

 flexus, transversim rugulosus. Stigma dilatato-bilobum, lobis 

 emarginatis altero majore, intus septis cruciatim in locellis 

 4 stigmatosis divisum. Capsula membranacea, calyce per- 

 sistente tecta, 2-locularis, 2-valvis, valvis bifidis, dissepimento 

 tenuissimo demum libero parallelis. Seinina plurima, minuta, 

 obovata, lateribus angulata, dorso convexa, ventre concava et 

 infra medium hilo notata; testa reticulato-foveolata. Embryo 

 in axi albuminis carnosi homotrope subincurvus, cotyledoni- 

 bus ovatis, compressis, radicula tereti infera 3-plo brevioribus 

 et 2-plo latioribus. — Herbse Americce intertropicce indigernBy 

 plus minusve viscido-pubescentes. Folia alterna^ Integra. Flores 

 ad axillas foliorum superiorum solitarii, cum petiolis sublate- 

 ralibus, interdum folioimm minutione in cymas irregulares termi- 

 nalibus dispositi; pedunculo flori/ero brevi, interdum fructifero 

 mox elongato ; corolla violacea, carulescens, aut albescens. 



In addition to the species enumerated by Mr. Bentbam in 

 DC. Prodr. x. 197 et 590, and the B. speciosa of Sir Wm. 

 Hooker, Bot. Mag. tab. 4339, I have now to mention two others 

 yet undescribed : — 



Browallia tenella (n. sp.) ; — herbacea, humilis, parce puberula, 

 foliis membranaceis, lanceolatis, vel ellipticis, in petiolum elon- 

 gatum cuneatis; floribus paucis, solitariis, axillaribus, calycis 

 membranacei dentibus lanceolatis, obtusis, insequalibus ; co- 

 rollse tubo gracili, calyce 4-plo longiore, limbo brevi, piano, 

 sinuato-pentangulato, lobis brevissimis, emarginatis, rotun- 

 datis, antico majori ; ovario apice piloso. — Rio de Janeiro. 



This species, which I found growing at Pertininguy in 1830, 

 has very much the habit of B. demissa, but is readily distin- 

 guished by the much greater length of the petiole, fewer flowers, 

 a more slender corolla with a much narrower border, a more 

 membranaceous calyx with less prominent nervures, and by the 

 simple hairs and almost obsolete pubescence of the whole plant. 



