PHYT0LACGACE2E. 



43 



In other species of the same genus as G. Cyclotheca? the 

 general organization is the same ; but the stamens, from six to 

 twelve in number, only form a single verticil, and leave free to the 

 centre of the flower a prolongation of the summit of the receptacle 

 in the form of a column. As to the carpels, less 

 numerous 2 than in G. ramulosus, they open early ^rostemon(Codonocar P u S ) 



J L J pyramidahs. 



by their dorsal and ventral edges, and leave naked 

 a long central columella, at the apex of which 

 the styles persist, radiated like a star. 3 The 

 vegetative organs are the same. 



In G. pyramidalis 4 (fig. 72), considered as a 

 particular genus under the name of Codouocarpus, 5 

 the vegetative organs are always the same, but 

 the fruit changes a little in form. Its base is 

 more attenuated into a sort of reversed cone, and 

 the numerous carpels which constitute it, after 

 being detached from the central columella, only 

 open lengthwise by their thinned and mem- 

 branous inner edge. The organization of the fruit 

 is the same as in G. attenuatus* and cotinifolius? 

 but the leaves, instead of being linear, are flat- 

 tened, membranous, lanceolate and obovate. The 

 flowers are axillary, as in G. ramulosus, but the 

 leaves whose axil they occupy are often replaced 

 by bracts, so that the inflorescence may become a 

 raceme or a spike. The six known species of the genus Gyrostemon 

 are Australian and frutescent. 8 



Beside Gyrostemon are placed Tersonia and Didymotheca, which 



Fig. 72. 



Longitudinal section of 



ripe carpel (■y'J. 



1 Benth., Fl. Austral., v. 146, n. 2. — G. 

 ramulosus Schltl, in Linncea, xx. 632 (nee 

 Desf.). — Cyclotheca australasica Moq., Prodr., 

 38.- — P/idymotheca pleiococca F. Muell., PL 

 Vict., i. 198, t. SuppL 9. 



2 There are sometimes from four to six. 



3 At the centre of which a little cone, the 

 apex of the columella, is prominent. 



4 F. Muell., in Linncea, xxv. 438. — Pcymeno- 

 theca pyramidalis P. M uell., Fragm., i. 202. 



5 A. Cunn., ex Hook., Pot. Misc., i. 244. — 

 Enul., Gen., n. 5265. — Moq., Prodr., 39. — 

 Benth., Fl. Austral., v. 147. — Hymenolheca F. 

 Muell., Fragm., loc. cit. 



6 Hook., Pot. Misc., i. 244, t. 53.— Codo- 

 nocarpus australis Benth., Fl. Austral., v. 148, 

 n. 2. 



' Desf., in Mem. Mus., viii. 116, t. 10. — 

 Moq., Prodr., 39, n. 2. — G. pungens Lindl., in 

 Mitch, tree Exped., ii. 121. — G. accciceformis 

 F. Muell., in Linncea, xxv. 439. — Codonocarpus 

 cotinifolius F. Muell., PL Vict., i. 200. — 

 Benth., FL austral., v. 148, n. 3. 



8 Except perhaps G. subnudum (G. bra- 

 chystigma F. Muell., ex Benth., FL Austral., 

 v. 146, n. 1 ; — Amperea ? subnuda Nees, in 

 PL Preiss., ii. 229), of which only the tops are 

 known. 



