. American journal of pharmacy . nted char-acteristics of some Ballota species, and, after a lengthy search, cameupon a single specimen in the herbarium of The Academy of NaturalSciences of Philadelphia, that was found identical with the calyx inquestion and which was labeled Ballota hirsuta Benth. Uponlooking up the characteristics of this species in Benthams Labia-tarum Genera et Species, p. 595, he found the macroscopic aspectsof the calyx identical. Through the courtesy of Professor Steward-son Brown, of the academy, he procured a leaf and calyx from aherbarium sheet, and these were studie
. American journal of pharmacy . nted char-acteristics of some Ballota species, and, after a lengthy search, cameupon a single specimen in the herbarium of The Academy of NaturalSciences of Philadelphia, that was found identical with the calyx inquestion and which was labeled Ballota hirsuta Benth. Uponlooking up the characteristics of this species in Benthams Labia-tarum Genera et Species, p. 595, he found the macroscopic aspectsof the calyx identical. Through the courtesy of Professor Steward-son Brown, of the academy, he procured a leaf and calyx from aherbarium sheet, and these were studied comparatively with the for-eign calyxes and fragments of leaves found in the sample. Theseagreed in every detail. Later the herbarium sheet of Ballota hir- i48 Ballota Hirsuta. {Amk^ suta was borrowed and further macroscopic and microscopic detailsapprehended which proved conclusively that the adulterant was Bal-lota hirsuta. The characteristics of these two herbs and the impor-tant diagnostic differences are hereby Fig. i. Fig. 2. Fig. 1. Aerial portion (to right) and branch (to left) of Marrubiumvulgare L. X 34 Fig. 2. Aerial foliage and floral stem of Ballota hirsuta Benth. Note thedense axillary clusters of flowers. X %? Am. Jour. Pharm. |March, 1919. -* Ballota Hirsuta. 149 Marrubium vulgare Linnaeus. Marrubium vulgare L. (Fig. i) commonly known as horehound,hoarhound. white hoarhound, or marvel, is a perennial herb in-digenous to Europe and Central Asia. It is cultivated in variousparts of the United States and has escaped in waste places through-out North America. The underground portion consists of a shortrhizome bearing numerous slender rootlets. The aerial stem iserect, quadrangular, .3 to .8 M. high, 3 to 5 mm. in diameter, Fig. 3. Calyx of Marrubium vulgare to right; calyx of Ballota hirsuta to left. X 4- branched, the branches ascending. Its white-wooly aspect is verystriking. The leaves are opposite, petiolate, exstipulate, varyingfrom ovate to broad
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Keywords: ., bookcentury1800, bookdecade183, booksubjectpharmacy, bookyear1835
