98 Mr. J. Miers on the Solanacese. 



from the rejection of the character of sestivation, occurs in the 

 genus Juanulloa, which M. Dunal divides into three sections : 

 1. Eujuanulloa ; 2. Physalina ; 3. Sarcophysa. In Juanulloa 

 proper we see a small group of plants, distinguished by their 

 scandent habit, large thick coriacous leaves and conspicuous 

 pendent flowers ; the calyx, covered with dense yellow stellate 

 tomentum, is formed of five distinct sepals, which are connivent 

 by their tomentous margins into a pentagonous tube, with un- 

 dulating prominent angles; this is persistent, increasing but 

 little with the growth of the berry, which it partially encloses, 

 being generally slit into its original segments by the separation 

 of the adherent edges of the sepals; tlie corolla, covered also 

 with orange- coloured tomentum, is twice or three times the 

 length of the calyx, and in the form of an elongated narrow 

 tube, somewhat ventricose in the middle, and contracted in the 

 mouth, with a small border of live almost orbicular lobes, quin- 

 cuncially imbricated in aestivation, being, as well as the tube, of 

 a thick fleshy consistence ; the berry is filled with seeds, having 

 a nearly straight terete embryo : these characters are fully deli- 

 neated in plate 46 of my ' Illustrations.' In Sarcojihysa we find 

 a corolla very similar in texture and structure, but larger and 

 more ventricose ; the calyx, of half its length, is fleshy in sub- 

 stance, roundly tubular, ventricose, decreasing in diameter to- 

 wards the mouth, where it is terminated by five short erect teeth ; 

 this scarcely increases in size, but becomes still thicker, more 

 coriaceous in texture, and is at length irregularly ruptured on 

 one side, nearly to the base, by the growth of its enclosed large 

 berry. This genus has been shown to be generically distinct 

 from Juanulloa {huj. op. vii. 349), both being closely allied to 

 Solandra ; its characters are delineated in plate 47 of the same 

 work. The place in the system of Juanulloa and Sarcophysa, as 

 I have shown, is not among the true Solanacece, but in the tribe 

 Solandrea of the Atropacea. 



The section Physalina of M. Dunal belongs to a very different 

 group, which I have described under the name of Cleochroma, a 

 genus closely allied to lochroma, and therefore belonging to the 

 family of the true Solanacece. The Juanulloa {Physalina) um- 

 bellata, Dun. (Prodr. 530) is again recorded (Prodr. 491) as 

 the lochroma calycina, Benth., figured in 'Bot. Reg.' (1831) 

 tab. 20, both being an identical plant of Hartweg's collection 

 (No. 1312), and described by me as Cleochroma calycina {huj, op. 

 vii. 350). This and two other species of his section Physalina are 

 frutescent shrubs, with leaves of more membranaceous texture, 

 with conspicuous purple fasciculated flowers ; the calyx is much 

 larger than in lochroma, tubular, thin in texture, 5-toothed, in- 

 creasing considerably in size during the development of the flower, 

 becoming ventricose in the middle, and finally enclosing the fruit ; 



