. The natural history of plants. Botany. THYMEL^AOM^. 109 Zaehntea {Cryptadmia) Fig. 77. Perianth and androecium. Dais eotinifoha. which alternate with the stamens are inserted lower down on the tube of the corolla (fig. 77); a character which has given a name {Cryptadenia) to one section of the genus. Lachncea comieXs, of ericoid ramose shrubs, with alternate or opposite leaves, and flowers terminal or solitary or collected in a variable number at the sum- mit of the branches, in heads bare or sur- rounded by an involucre. In the following types, while all the characters remain the
. The natural history of plants. Botany. THYMEL^AOM^. 109 Zaehntea {Cryptadmia) Fig. 77. Perianth and androecium. Dais eotinifoha. which alternate with the stamens are inserted lower down on the tube of the corolla (fig. 77); a character which has given a name {Cryptadenia) to one section of the genus. Lachncea comieXs, of ericoid ramose shrubs, with alternate or opposite leaves, and flowers terminal or solitary or collected in a variable number at the sum- mit of the branches, in heads bare or sur- rounded by an involucre. In the following types, while all the characters remain the same as the preceding, the scales of the throat of the perianth disappear. This is observed not only in Daphne, but in the numerous genera which, with it, here constitute a second subseries (Eudaphnecs). The most complete are those which, as Dais (fig. 78), have regular hermaphrodite pentamerous flowers, with two series of five stamens, of which five, longer and higher placed, are op- positipetalous, and a gynsecium sur- rounded by a hypogynous disk. Dais, shrubs of Madagascar and the Cape, has, besides, the foliage and infiorescence of Gnidia, to which it is often united, being distinguished only by the absence of scales from the throat. Lasiadenia, a shrub from Guyana and Venezuela, has nearly the same flowers; but the terminal and few-flowered capitules are destitute of an involucre, and the flve glands which accompany the base of the ovary are short and covered with long hairs. It is scarcely possible to separate Hargasseria, shrubs of Cuba, except that the stamens areexserted instead of being enclosed, and the flowers are polygamous and collected in a capitule (without involucre) the receptacle of which is covered with abun- dant hairs (like that of Lasiosiphon). In Goodallia, a shrub of Guyana, which also has alternate leaves and flowers in terminal and capituliform spikes, the flowers are dioecious, pentamerous ; and the hairy glands of the disk, ten in number, are not h
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
