. The natural history of plants. Botany. VALERIANACE^. 609 Ceritranthus ruber, cymes, occasionally racemiform or spikelike. They inhabit all the cold and temperate regions of the northern hemisphere, both old and new world, and those of the southern hemi- sphere in America. Gentranthus (fig. 409) comprises Valerians whose andrcecium is generally reduced to a single stamen, that of the two laterals situate on the side of ihe fertile ovarian cell. The corolla has a bilabiate limb, a narrow tube prolonged anteriorly at base to a long and slender spur, and a sort of partition dividing the tube to
. The natural history of plants. Botany. VALERIANACE^. 609 Ceritranthus ruber, cymes, occasionally racemiform or spikelike. They inhabit all the cold and temperate regions of the northern hemisphere, both old and new world, and those of the southern hemi- sphere in America. Gentranthus (fig. 409) comprises Valerians whose andrcecium is generally reduced to a single stamen, that of the two laterals situate on the side of ihe fertile ovarian cell. The corolla has a bilabiate limb, a narrow tube prolonged anteriorly at base to a long and slender spur, and a sort of partition dividing the tube to a considerable extent into two narrow compartments, through one of which pass the style and fertile stamen, whilst the other is continued downwards into the spur. Gentranthus -comprises annual or perennial herbs of the Mediterranean region, with oppo- site, entire or partly dentate or pinnatisect leaves, and flowers in compound terminal clusters of Fig, 409. Flower, ovary, and spur opened. This small family was not admitted by de Jussieu ; he placed' Valeriana, by him confounded with Valerianella,^ among the DipsacecE, with which they have many affinities. It was de Candolle who, in 1815,' established a family of Valerianeos,^ the study of which he followed up in a special Memoir,' and in which he included eleven genera: Patrinia, Nardostachys, Dufresnia, Valerianella, Astrephia, Fedia, Plectritis, Gentranthus, Valeriana, Betckea and Tri- plostegia. Three of these are, in our opinion, duplicate, and Triplo- stegia has been referred to the true Dipsacece. The successors of De Candolle have very slightly modified the constitution of this family.^ Messrs. Bentham and Hookee' retain nine genera and 1 Gm. (1789) 195. 2 AdAkbon had, however, in 1763 {Fam. des PI. ii. 152), distinguished J?«<?w from Vahriana; he also placed in this same section his Polypre- mum [Valerianella). ^'{ei. 3) v. 232. â ⢠ValerianeiB DC. Frodr. iv. (1830) 623, Ord. 99.â
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
