Mr. J. Micrs on the genus Pionandra. 197 



wliicli corresponds with Dr. Scndtner's genus, and is distin- 

 guished (as both names imply) by their fleshy and curved sta- 

 mens, and more or less obconical style and stigma, which are 

 often as short and thick as the ovarium itself. 2. Euthystemun, 

 comprising those species noted for having the anthers much 

 longer, thinner, and very straight ; the style being slender, 

 terete, with a much smaller clavate stigma : the analytical details 

 of the former section are shown in plate 8, and of the second 

 section in plate 9 of the work referred to. M. Uunal in his 

 monograph of the genus, subsequently published in DC. Prodr. 

 xiii. 387, amplifies Dr. Scndtner's Cijphumandra, by the intro- 

 duction of the plants of my section Euthijstemon, thus increasing 

 the number of species to thirty-four ; he classifies those of the 

 former section into five, and of the latter section into three sub- 

 divisions, after Dr. Sendtuer's plan, according to the relative 

 lengths of the connective and the style. There are many cir- 

 cumstances that make it desirable to keep these two groups 

 quite distinct, having such marked characters ; and when Dr. See- 

 mann submitted to my examination the Solanaceous plants of 

 his Panama collection, I ventured, in describing a new species, 

 to suggest to him my views on this head, when he had the kind- 

 ness to publish them, together w^ith my note on the subject, in 

 his ' Botany of the Herald.' I there proposed to retain in 

 Dr. Sendtner's genus Cyphomandra, those species where the 

 anthers are much curved, often rostrate at the apex (as in C. 

 hetacea and (J. sycocarpa) ; the cells being verrucosely crumpled 

 in front, as in many Melastomacece, and partly imbedded in a 

 fleshy connective, which is dorsally gibbous at the base; the 

 filaments bi'oad and often dilated suddenly, being connected by 

 their bases upon a fleshy ring adnate to the base of the corolla ; 

 the style being generally shaped like an inverted cone, more or 

 less thick, and the fruit being a large oval berry, often used for 

 culinary purposes as a substitute for Tomates. They are gene- 

 rally tall shrubs, wdth large fleshy cordate leaves, emitting a 

 strong, unpleasant smell. This group consists of Cyphomandra 

 calycina, physaloides, sycocarpa, lobata, diploconos, jiorihunda, 

 ciliata, fragrans, sciadostylis, preinncefolia, corymbiflora, and viri- 

 diflora. 



For the second group, I px'opose to retain my generic name of 

 Pionandra, which will include those species formerly designated 

 under the section Euthystemon, together with some others that 

 will be indicated below. This genus differs from Cyphomandra 

 in its lengthened, straight, erect, and narrower stamens, almost 

 rostrate at the summit below the apical knob, which bursts 

 obliquely in front, forming two bilabiate gaping pores ; the 

 pollen-cells also burst below by longitudinal fissui'es ; it has like- 



