468 Mr. J. Miers on the genera Hyoscyamus and Physochlena. 
with the gland in question, this bemg evident upon making a 
longitudinal section just before the ripening of the fruit. 
Dr. Putterlick has given in Nees’s ‘Gen. Pl. Germ.’ a very good 
series of illustrated analytical dissections of the flower and seed 
of Hyoscyamus, but in many respects these details do not agree 
with the structure, as I have observed it ; for instance, the pla- 
centz are represented as being cruciform with the dissepiments, 
to which they are attached by a central axile line, becoming 
lunately expanded in the middle of each cell as in Physalis; I 
have found the placentz on the contrary to be thick and fleshy, 
both closely adnate with the dissepiment, forming one cylindrical 
column that fills the greater portion of the central space of the 
ovarium ; the embryo is also shown too thick in proportion, and 
the cotyledons are not incumbent as there exhibited, but accum- 
bent after the manner almost universally seen in this family : 
some of the figures there truly represent the corolla as having an 
imbricated estivation, which however is erroneously described in 
the text, as in the descriptions of all other authors, as being pli- 
cated : there is no indication there represented of the remarkable 
apical gland in the summit of the ovarium. 
I have annexed the specific character of a species which I 
found growing in Kew Gardens, and which appears nowhere 
given. 
Hyoscyamus, Tournef.—Calyzx urceolato-tubulosus, 10-nervis, 
5-dentatus, dentibus erectis demum rigidis, persistens et au- 
gescens. Corolla infundibuliformi-campanulata, obliqua, imo 
constricta, limbi obliqui lobis 5, brevibus, obtusiusculis, subin- 
sequalibus, patentibus, seepe hince semi-fissa, estivatione im- 
bricata. Stamina 5, imo corolle inserta, inclusa, rarius ex- 
serta, declinata ; filamenta imo fornicata et puberula, superne 
subulata et glabra; anthere 2-loculares, loculis arcte adnatis, 
longitudinaliter intus dehiscentibus, imo connectivi dorsalis 
articulatim affixe. Ovarium conicum, disco hypogyno fere 
obsoleto impositum, glandula apicali magna crasso-carnosa sig- 
natum, 2-loculare, pluri-ovulatum, placentis valde incrassatis 
dissepimento utrinque adnatis. Stylus exsertus, apice incurvus. 
Stigma capitato-bilobum. Capsula urceolata, submembranacea, 
calyce aucto reticulato-coriaceo dentibus pungentibus recon- 
dita, 2-locularis, supra medium horizontaliter ruptilis, oper- 
culo deciduo, cupuliformi, crasso, corneo. Semzna reniformi- 
ovata, compressa, testa scrobiculata, hzlo prominulo cavo 
in sinu laterali. Embryo in albumen carnosum teres, subspi- 
ralis, radicula paulo incurvata, ad angulum basalem spectante, 
cotyledonibus semiteretibus zquilonga.—Herbe Gerontogee 
pubescentes, sepius viscose et olide, vadice perennante ; folia 
