Mr. J. Miers cn the genera Hyoscyamus and Physochlena. 473 
This plant grows by the side of the former species, and little 
or no difference is to be seen between them in the size and shape 
of the leaves: they are however less fuscous, and do not become 
so thick and dark in drying, the pubescence is less dense, and the 
nervures beneath are prominent and green. The inflorescence 
is panicular, not corymbose; the pedicel, as well as its small 
sessile ovate pointed bract, and the calyx, being covered with 
dense, short, patent, glandular hairs: the corolla, of a pale pur- 
plish colour, is slightly pubescent externally ; its estivation is 
distinctly imbricate, with its external lobe on the contrary side 
to the more oblique portion, to which the stamens and style are 
inclined ; the ovarium exhibits several long simple hairs upon its 
surface. 
5. Physochlena prealta. Belenia prealta, Decne. Jacq. Voy. 
Bot.114. tab.120. Hyoscyamus prealtus, Walp. Rep. ui. 21;— 
herba perennis, pilis brevibus rarisque viscidulis tota imspersa, 
foliis e parte infra medium lanceolatis, imo deltoideis, subiter 
acuminatis, et in petiolum incrassatum decurrentibus, supra 
glabris, subtus rachi crassissimo, et im venis prominentibus 
viscidulo-pilosis ; panicula terminali, elongata, ramosa, ramis 
longis, laxiflora, pedicellis calyce longioribus, bracteatis, cer- 
nuis, demum elongatis, erectis; calyce brevi, urceolato, den- 
tibus 5 brevibus reflexis, fructifero valde aucto, et subincurvo ; 
corolla viridi-lutescente, venis viridibus picta.— Himalaya. 
This plant appears much taller than any of the foregoing spe- 
cies, its inflorescence much longer and more lax, the calyx grows 
to a larger size considerably, and the corolla is of a greenish yel- 
low, marked with dark green reticulations, as in Hyoscyamus. It 
approaches Hyoscyamus muticus, which probably belongs rather 
to this genus, on account of its long, panicular, terminal inflo- 
rescence, the obtuse lobes of its calyx, and often purple flowers. 
The leaves are 33 inches long (exclusive of its decurrent petiole 
of 4 an inch), and 1} inch broad. The inflorescence is 7 or 8 
inches long; the corolla is more campanular than that of the 
typical species, the stamens being included; the style alone is 
exserted: the calyx in flower is 4 lines long, tubular, and 2 lines 
in diameter ; it subsequently grows to a length of 11 lines and 
to a diameter of 4 lines. In the drawing above quoted, a section 
is given of the seed of this species, in which there appears a 
manifest error in the relative positions of the radicle and coty- 
ledons in regard to the hilum: it seems very unlikely that it 
should differ in this respect from the features described in the 
generic character, which are derived from careful observation 
upon several other species, and which are conformable to the 
structure known to exist in all the allied genera in this family. 
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