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SOUTH AMERICAN PLANTS. 65 



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Browallia. 



The affinity oi Browallia with Salpiglossis is sufficiently evident^ 

 but in many respects it approaches very closely to Petunia. lu 

 the tabular arrangement suggested on a former occasion {huj. 

 op. vol. i. p. 172) y Browallia v;?i^ associated with iheSalpiglossidece, 

 on account of the apparent aestivation of its corolla^ combined 

 with its other characters. I regret very much, that since my 

 attention has been directed to this investigation^ I have had no 

 opportunity of examining a flower in its living state, as by this 

 means only could its precise mode of prsefloration be ascertained ; 

 it is cex'tainly not inibricative as in Franciscea, but is either re- 

 plicative or rcciprocative, as in Petunia or Salpiglossis; judging 

 from its appearance after being pressed and dried, it seems to 

 be rather that of the last-named genus. The following generic 

 features have been derived wholly from an examination of dried 



specimens : 



Browallia, Linn. (char, reform.). — Calyx tubulosus, subcyliu- 

 dricusj lO-nervis, 5-(ientatus, dentibus insequalibus, 3-nerviis, 

 augescens et persistens. Corolla hypocraterimorpha, tubo au- 

 gusto, cylindrico, calyce 2-3-pIo lougiore,, superne et antice 

 ventricoso, fauce in oram elevatam constrictOj limbo obliquo, 

 plano^ breviter 5-partito, lobis rotundatis, emarginatis, insequa- 

 libusj rarius oblongis, acutis, antico paulo majore, jestivatione 

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

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

 tata, apice expansa, inflexa et pilosa ; antherce sagittato-biloba?, 

 inversse, lobis ovatis, rima marginali dehiscentibus, superiorum 

 lobo altero minimo casso. Ovarium obovatum, apice pilosum, 

 inferne glaberrimum, sape stipitatum, rarius omnino glabrum, 

 2-loculare, placentis carnosis proniinulis dissepimento utrinque 

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

 flexus, transvcrsim rugulosus. /S/ij^ma 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 

 tenuissirao demum libero parallelis. Semina plmima, 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 intertropica indigerKs, 

 plus minusve viscido-pubescentes. Folia altema, Integra. Flores 

 ad axillas foUorum mperiorum solitarii, cum petiolis suhlate- 



terdum foliorum 



VOL. II. 



K 



