INDEX. 



611 



trails, 34 ; hardly exists in the in- 

 terior, 339 



Subgeneric or sectional names of 

 natural groups proposed to form 

 an essential part of the name, in- 

 serted between brackets, 274-5 



Swan River, general view of the 

 Botany of, 305 ; number of species 

 collected there by Mr. Charles Fra- 

 ser,307; principal famiiies contained 

 in the collection, 307-8 ; observa- 

 tions on the geographical dis- 

 tribution of some of the more 

 interesting families or species, 309 



Tamarind of the banks of the Congo, 



probably of Asiatic origin, 156 

 Tapura referred to Chailleteee, 126 

 Tasmannia, its remarkable stigma, 



559 

 Taxus, origin of the berry in, 43 

 Terebintacese of Jussieu, made up 



of several orders and genera, 111 

 Terra Australis, general remarks on 

 the botany of, 361 ; nature of the 

 different parts visited by Mr. Brown 

 and Mr. Ferdinand Bauer, 4 — 6; 

 number of species of plants found 

 in, by Mr. Brown, by Sir Joseph 

 Banks, by Mr. David Nelson, by 

 Mr. Menzies, by Colonel Paterson, 

 by Mr. David Burton, by Mr. 

 George Caley, &c., 6; estimated 

 number of species in the flora of 

 [in 1814], 7 [in 1849], 338 ; pro- 

 portion of some of the larger orders 

 in the vegetation of, 62 ; a large 

 proportion of the genera and species 

 of phsenogamous plants peculiar to, 

 63 ; comparison of its vegetation 

 with that of other parts of the 

 world. South Africa, 63 ; South 

 America, 64 ; New Zealand, 65 ; 

 Europe, 65 ; hst of species common 

 to Terra Australis and Europe, 65, 

 68 ; the portion of the coast ex- 

 tending from Swan River on the 

 W. Coast, to Middle Island on the 

 S. Coast, contains the greatest pro- 

 portion of genera peculiar to New 

 Holland, 309, 338; vegetation of 

 the extratropical interior, 338 ; 

 number of plants collected in the 

 various expeditions to the interior, 

 339 



Testa, how formed and distinguished, 

 449, 450 ; sometimes completely 

 obliterated, 450; forms the greater 

 part of the substance of the seed in 

 certain Liliacese, 450 ; its singular 

 development in the ripe fruits of 

 Banksia and Dryandra, ibid. 



Thoa, generically the same as Gnetum, 

 453 



Thonningia sanguinea, related to, if 

 really distinct from, Balanophora, 

 414 note. 



TiliaccK, observations on the order 

 and on the species found in the 

 vicinity of the Congo, 108 



Tillandsia nsneoides, peculiarities of 

 its vascular system, 413 note. 



Tobacco of the banks of the Congo, 

 probably brought from America, 

 155 ; arguments in favour of its 

 American origin, 158 



Tradescantia Virginica, cell-nucleus 

 in its various tissues, 513-14 ; struc- 

 ture of the hairs of its filaments, 

 513-14; strise on, 513 note; nu- 

 cleus in, ibid, note ; circulation in, 

 ibid.; development of its pollen, 

 514 note ; circulation in its pollen 

 tubes, 530 note. 



Transportation of plants to distant 

 localities, purposely, 167; acci- 

 dentally, 167 ; by natural causes, 

 168; favoured by the degree of de- 

 velopment and protection of the 

 embryo, 168 



Tremandrese, character of the order, 

 and observations on its distribution 

 in Terra Australis, 15 



Treviranus, L. C, his account of the 

 structure of the pollen masses, and 

 of the mode of impregnation of As- 

 clepiadese, 520-1 



Tribulus, subdivision of the genus, 

 318 



Triplosporite, some account of, 583 — 

 591; history of the specimen de- 

 scribed, 583; description of the 

 specimen, 585-8 ; its axis, bracteaj, 

 sporangia, and sporules, 586-7 ; 

 its analogy witli Ferns and Lycopo- 

 diaceffi, 587 ; its microscopical 

 structure, 587; its affinities, 688; 

 its probable generic identity with 

 Lepidostrobus ; account of a fossil 

 specimen closely resembling it, 590 



