INDEX. 



611 



tralis, 34; liardly exists in tlic in- 

 terior, 339 



Snbgcncric or sectional names of 

 natural groups proposed to Ibriu 

 an essential part of the name, in- 

 serted between brackets, 274-5 



Swan llivcr, general view of tlie 

 Botany of, 305 ; number of species ' 

 collected there by Mr. Charles Fra- | 

 ser, 307 ; principal families contained \ 

 in the collection, 307-8 ; observa- I 

 tions on Ihc geograj)hical dis- I 

 tribution of some of the more 

 interesting families or species, 309 



lamarind of the banks of the Congo, 



probably of Asiatic origin, 150 

 Tapura referred to Chailletea^ 126 

 Tasmannia, its remarkable stigma, 



559 

 Taxus, origin of the berry in, 43 

 Terebintacea; of Jussieu, made up 



of several orders and genera, 111 

 Cerra Australis, general remarks on 

 the botany of, 361 ; nature of the 

 different parts visited by Mr. Brown 

 and Mr. Eerdinand 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 

 jtroportion of the genera and species 

 of pha-nogamous plants peculiar to, 

 03 ; comparison of its vegetation 

 with that of other parts of the 

 world, Soutli Africa, (»3 ; South 

 America, 64 ; iS'ew Zealand, 65 ; 

 l']urope, 65; list of species common 

 to Terra Australis and Europe, 65, 

 «3S ; the portion of the coast ex- 

 tending from Swan River on the 

 W. Coast, to i\Iiddle Island on the 

 •t?. Coast, contains the greatest pro- 

 portion of genera peculiar to New 

 Holland, 309, 338; vegetation of 

 the extratropical interior, 338 ; 

 1. umber of plants collected in the 

 various cxj)edili()ns to the inl(M-ior, 

 39 



Testa, iiow formed ;tiid dibtinguislicd, 

 449, 450; sometimes completely 

 obliterated, 450; forms the greater 

 part of the substance of the .seed in 

 certain Liliaeea?, 450; its singular 

 development in the ripe fruits of 

 Banksia and JJryandra. ibid. 



Thoa, generically the same as Gnctum, 

 153 



Thonningia .sanguinca, related to, if 

 reallv distinct from. Balanopiiora, 

 1 14 Mo/e. 



Tiliacejo, observations on the order 

 and on the species found in the 

 vicinity of the Congo, lOS 



Tillandsia usneoides. peculiarities of 

 its vascular system, 413 fiotr. 



Tobacco of the banks of the Congo, 

 probably brought from America, 

 155; arguments in favour of its 

 American origin, 158 



Tradcscantia Virginica, cell -nucleus 

 in its various tissues, 513-14; struc- 

 ture of the hairs of its tilaments, 

 513-14; striffi on, 513 uoff ; nu- 

 cleus in, ibid, /wte ; circulation in, 

 ibid.; development of its pollen, 

 5l4:/iofe; circulation in its pollen 

 tubes, 530 no^e. 



Transportation of plants to distant 

 localities, purposely, 167; acci- 

 dentally, ]67; by natural causes, 

 168; favoured by the degree of de- 

 velopment and protection of the 

 embryo, 168 



Tremandrea\ character of tlie 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- 



clepiadea*, 520-1 



Tribulus, subdivision of the genus, 



:\\s 



Triplosj)orite, some account of, 5 S3 — 

 591; history of the siieeimen de- 

 scribed, 583; description of the 

 specimen, 585-8; its axis, braclra*, 

 sporangia, and sporules, 5SC-7 ; 

 its analogy witli Ferns and liycopo- 

 diacejc, 587 ; its microscopicaj 

 structure. 587; its atlinitics. oSS ; 

 its probable generic identity wi»h 

 Lepidostrobus; account of a fossil 

 specimen c•lo^cly resembling it, 590 



