DILLENIAGEJE. 



97 



For the same reasons, Trisewa Hook. F.,' vvliicli Fatlier Mont- 

 ROUZiER* names Vanleria, should also be included in the ^auVi^Hlbbcrfla. 

 The single carpel/ whose ovary contains as many as a dozen anatro- 

 pous ascending ovules, is surrounded by a large number of unequal 

 fertile stamens, with narrow two-celled anthers dehiscing laterally, and 

 bj a calyx of five imbricate sepals, alternating with which we often 

 see but three or four petals. The flowers grow in terminal unilate- 

 ral spikes, like those other 

 Oceanian species of Hibbertia, 

 called Ilemipleurandra, or those 

 Hemistemmas which grow in 

 Australia and Madagascar. 



These last have opposite, or 

 nearly opposite leaves, un- 

 like all the other species of the 

 genus Hihbertia, as we limit 

 it,'* which are shrubs, or under- 

 shrubs, with exstipulate leaves, 

 whose petioles are articulated 

 at the base. About eighty 

 species are known,^ without 

 counting those described as 

 such, but which should only ) --^ 

 be retained as varieties. 



The genus Schiouacheria^ 

 consists of plants whose ses- 

 sile or sub-sessile flowers are 

 grouped in unilateral inflorescences (fig. 140), like those of the 

 sections Hemisiemma, Trisema, &c., of Hihbertia, from which, on the 



Fio. 140. 

 Selmmacheria castanecpfolia. 



' Hooh. Journ., ix. 47, t. 51. — Be. & Ge., 

 Ann. Sc. Nat., ser. 5, ii. 150; Bull. Soc. 

 Hot. de Fr., xi. 191. — H. Bn., Adansonia, vi. 

 259. 



2 Mem. Acad. Lyon, x. (1860), 176. 



^ Owing to this single carpel, Trisema is to 

 the other Ilihbertias with unilateral inflores- 

 cences, what H. monogyna II. Br. is to the other 

 pleiogynous species of Australia whose inflores- 

 cence resembles its own. But it appears to us 

 impossible to retain this as a distinct genus (see 

 Adansonia, vi. 269). 



VOL. I. 



Jlibbertia 

 Sections 7." 



( 1. Ci/claiidra. 



2. Burtonia. 



3. Trimorphandra. 



4. Trisema. 



5. Hemistemma. 



6. Ilpmipleurandra. 

 , 7. Pleuraiidra. 



5 DC. Prodr., i. 71, 73.— Walp., Pep., i. 01 ; 

 ii. 7 16 ; V. 8 ; Ann., i. 15 ; ii. 14 ; iv. 35.— 

 BENTirAM, Fl. Ati.stral., i. 17. — F. Muell., 

 Fragm., i. 161, 217; ii. 1 ; iii. 1 : iv- US, 151. 

 —Hook. F., Fl. Tasman., 13.— .\. Okay, 

 Amer. Explor. Exped., i. 20. 



« Vahl., Kiobenh. Selskab. Skriff., vi. 12-.'.— 



H 



