472 Mr. J. Miers on the genera Ilyoscyamus and Physochlgena. 



viscous down, not lon^ woolly hairs, and its flowers are not co- 

 rymbose and many-Howered. The calyx is 4 lines long, 2 lines 

 in diameter ; the corolla is 7 lines long, of a reddish purple colour, 

 and its lobes are more ovate and rounded ; the ovarium is gla- 

 brous. It makes its appearance at least a month or six weeks 

 later in the season than the two following species *. 



4. Physochlcma orientalis. Physoclaina orientalis, G. Don, lac. 

 cit. Hyoscyamus orientalis, Bieb. Fl. Taur. i. 164; Sims^ But. 

 Mag. tab. 2414; — viscoso-pubescens, foliis fusco-viridibus, 

 deltoideo-ovatis, acutis, in petiolum sublongum attenuatis, 

 demum subglabris; iloribus corymbosis, corolla obscuriore, 

 purpurea, staminibus atro-violaceis, styloque sequilongo longe 

 exsertis, calyce florifero tubuloso, fructifero cylindrico, mem- 

 branaceo, reticulato, capsulam minorem includente. — Caucasia 

 prope Narzanam : v. s. in herb. Hook. (Caucasus, Steven) et in 

 hort. Kevj. cult. 



This plant grows in the open air in Kew Gardens to the height 

 of 12 or 18 inches, its numerous stems being annually deci- 

 duous : it is altogether covered with short viscous pubescence, 

 which, as well as the foliage, is of a dark fuscous hue, becoming 

 greener after the fall of the flowers. The leaves are 2| inches 

 long, 1^ inch broad, upon a fleshy channeled petiole of 1 inch in 

 length, the nervures and stem being of a purplish hue : the calyx 

 is 3 lines long, the corolla 6 lines, the stamens and style being 

 exserted to a length of 3 lines : the capsule is 3 lines in diameter, 

 inclosed in the calyx of equal diameter, and of nearly double 

 its length, which is pilose, reticulate, submembranaceous, and 

 in no degree swelling in the middle : the lower valve of the cap- 

 sule is somewhat membranaceous, greenish, and marked with 

 several longitudinal nervures ; the operculum, crowned by the 

 persistent base of the style, is of a blackish violet hue, soft, of 

 thin texture, and quickly shrivels up in drying : the seeds are few, 

 proportionately rather large, yellowish brown, scrobiculated, oval, 

 reniform and compressed : the embryo is arched in a semicircular 

 form ; the radicle, about the length of the cotyledons, points to 

 the basal angle below the lateral hilum. 



Var. ^. nffinis. Hyoscyamus orientalis, Sweet, Brit. Fl. Gard. i. 

 tab. 12 ; — glanduloso-pubescens, foliis ovatis, acutis, in pe- 

 tiolum sublongum attenuatis, venis pilosulis, demum sub- 

 glabris ; corolla purpurascente, lobis subalbidis, staminibus 

 inelusis, stylo longe exserto, calyce fructifero inflato. — v. v, 

 cnlt in hort. Kew. 



* A drawinc: of this species \nt\\ analytical details will be given in a sup- 

 plementary plate in the 2n(l vol. of the ' Illust. South Amer. Plants.' 



