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612 Triraphis Pumilio, a second species of a New Holland genus of grasses, found in Central Africa, 302

Tuckey, Captain, observations on the plants collected in the vicinity of the Congo, during the expedition of, 97

Umbelliferæ, observations on the order and on its distribution in Terra Australis, 29

Urena, the double stigmata of the compound ovarium of, 559

Urticeæ considered as a class rather than an order, 137; observations on the species found in the vicinity of the Congo, 137

Vascular structure, conformity in, does not always indicate botanical affinity, exemplified in Coniferæ and Winteraneæ, 413 note; not always uniform in strictly natural families, ibid.

Verbenaceæ, observations on the order and on its distribution in Terra Australis, 38; on the species found in the vicinity of the Congo, 135

Violeæ, observations on the order, and on the species found in the vicinity of the Congo, 122

Viscum album, structure of its stamina, 460

Vitis, includes Cissus, Ampelopsis, and Botria, 151

Westall, William, his view of King George the Third's Sound, in Flinders's voyage, in which Kingia Australis is represented, 435

Xanthorrhœa, observations on, 50, 438; its anatomical structure, 438, 439, and note

Zamia, origin of the ovulum in, 458; analogy of male and female flowers in, 459

Zygophylleæ, observations on the order, and on plants belonging to it found in Central Africa, 285-287