86 Mr D. Don on tlie Characters of' Darwinia.., <^c. 



In Brunsfelsia americana ovarium certe biloculare, bacca septo disrupto unilo- 

 cularis, polysperma, semina angulata, testa exteriore Crustacea minute scro- 

 biculata badia, interiore membranacea fragili ! alba, albumine copioso dense 

 camoso lutescente, embryo curvatus lacteus, cotyledonibus ovalibus plano- 

 convexis vascularibus ! radicula tereti his parum longiore obtusa umbilico 

 opposita. 



In the structure of the flower, both Brunsfelsia and Francis- 

 cea precisely accord. It is true that the tube of the corolla is 

 very much^ lengthened in B. americana ; but its being found 

 to vary considerably in Franciscea, shews that this character 

 is not constant, and therefore only to be considered as of spe- 

 cific importance. The structure of the seeds, and the direction 

 and form of the embryo, shew that the true place in the system 

 for this genus is among the Sohmea, and that it is scarcely to be 

 separated from the normal group of that family. The ovarium 

 of B. americana is clearly bilocular. There is an interesting 

 additional species to this genus in the herbarium of Don Hipo- 

 lito Ruiz, collected by Don Juan Tafalla, at Uchiza, in Peru, 

 in 1798. This new species I have named B. grandiflora *. 



BROWALLIA. 



Fkom the form and plicate aestivation of the corolla, I am 

 also disposed to remove this genus from among the Scrophula- 

 rina, where it has been hitherto placed, to the Solaneee, with 

 which it seems better to accord, even in habit. As the genus 

 appears to me not to have been described with that accuracy so 

 essentially necessary in matters of this kind, I beg to subjoin 

 the following description, which may not prove unacceptable to 

 my botanical readers. 



" B. grandiflm-a, foliis elliptico-oblongis acuminatis, floribus corynibosis, 

 tubo coroUse limbo vix longiore. 



Hab. in Peruvia ad Uchiza. Tafalla, pj. (v. s. in Herb. Ruiz, nunc in Mus. 

 Lamb.) 



Frutex raniis virgatis, glabris. Folia sparsa, petiolata, elliptico-oblonga, 

 acuminata, plana, glabra, laete viridia, 3-C-pollicaria, latitudine sesqui v. bipol- 

 licaria. Petioli vix seniunciales. Flm-es pkires (6-8) terminales, corynibosi, 

 breviter pedicellati. Calyx tubulosus, 5-clentatus, unguicularis : denlibus ova- 

 tis, acutis. Corolloe tubus cylindraceus, ultra unciaui longus : limbus amplus, 

 diametro fere biuncialis Stamina subaequalia. 



