Mr. J. Miers on the genera Hyoscyamus and Physochlsena. 471 



tibus; calyce fructifero inflato, glabro, capsulam dimidio mi- 

 norem claudente. — Siberia, in montibus Altaicis, et planitiis 

 Songarise. — v. s. in kerb. Hook, e locis citatis. 



This plant scarcely exceeds the height of 6 or 8 inches, and 

 may at once be distinguished from all others by the smallness of 

 its leaves, and of its stature and its tuberose root : its leaves are 

 | inch long and 7 lines broad ; they are subcordate or auriculate 

 at base, tapering suddenly, and decurrent on the petiole of equal 

 length. The flowers are capitato-corymbose ; the pedicels and 

 calyx are clothed with long cottony hairs, which are articulated, 

 but apparently not viscous ; the calyx is 3 lines long, the corolla 

 6 lines, the former growing to a length of 8 lines, being 3 lines 

 broad in the mouth, and 5 lines diameter in the swollen middle ; 

 it is of transparent texture, smooth, marked with numerous reti- 

 culations, and with ten longitudinal nervures ; the berry is about 

 3 lines in diameter, subglobose, with a small flattened operculum. 



2. Physochlaena Dahurica-, — caule violascente, foliis deltoideo- 

 ovatis, acutis, basi auriculato-cordatis, hinc subito acuminatis, 

 et in petiolum crassum decurrentibus, rachi venisque purpu- 

 rascentibus, utrinque glaberrimis ; panicula terminali, lanato- 

 pilosa, genitalibus inclusis. — Dahuria, v. s. in herb. Hook. (Hy- 

 oscyamus physaloides, Turczaninow). 



This plant differs from the preceding in its more fleshy habit, 

 its leaves being much larger, more deltoid, more acute at the 

 apex, broader at their base ; they are If inch long, If inch broad, 

 on a fleshy petiole 1± inch long. 



3. Physochlcena rubricaulis. Hyoscyamus physaloides, Sweet, 

 Brit. Fl. Gard. i. tab. 12; — caulibus crassis, subprostratis, sub- 

 flexuosis, rubescentibus, nodis cupularibus cum petiolo arti- 

 culatis ; foliis oblongo-ovatis, acutis, repando-undulatis, basi 

 obtusis, in petiolum crassum canaliculatum longe decurren- 

 tibus, utrinque glaberrimis ; racemo corymboso, terminali 

 rufescente, paucifloro, pedicellis incurvis, calycibusque fuscis 

 dense glanduloso-pilosis, corolla glabra, purpurascente, laci- 

 niis ovatis, rotundatis, staminibus inclusis, stylo declinato ex- 

 serto recurvo. — v. s. in hort. Kew. cult. 



This plant has a fusiform root : its stems are fleshy, somewhat 

 flexuose, with internodes seldom more than half an inch apart ; 

 its leaves in shape much resemble those of P. Dahurica ; they are 

 2 inches long, 1^ inch broad, gradually tapering upon a fleshy 

 petiole \~ inch in length ; this as well as the thick fleshy midrib 

 and prominent nerves are of a dark reddish purple colour ; in 

 drying, the blade of the leaf becomes yellow. Its inflorescence 

 is much shorter, fewer-flowered, and covered with dense short 



