PHYTOLACCACEÆ. 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’ than in G. ramulosus, they open early Fee as qu 
by their dorsal and ventral edges, and leave naked y— 
a long central columella, at the apex of which 
the styles persist, radiated like a star.’ The 
vegetative organs are the same. 
In G. pyramidalis' (fig. 72), considered as a 
particular genus under the name of Codonocarpus,’ 
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. allenualus and colinifolius,’ 
but the leaves, instead of being linear, are flat- 
tened, membranous, lanceolate and obovate. The 
flowers are axillary, as in G. ramulosus, but the 

Fie. 72. 
leaves whose axil they occupy are often replaced Longitudinal section of 
4 ripe carpel (1°). 
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.® 
Beside Gyrostemon are placed Zersonia and Didymotheca, which 

1 BENTH., Fl. Austral., v. 146, n. 2.—G. 6 Hoox., Bot. Misc., i. 244, t. 53.—Codo- 
ramulosus SCHLTL, in Linnea, xx. 632 (nec 
Desr.).— Cyclotheca australasica MoQ., Prodr., 
38.— Didymotheca pleiococca F. Murty, 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. 
47. MuELz., in Linnea, xxv. 438.— Hymeno- 
theca pyramidalis K. MUELL., Fragm., i, 202. 
5 A. Cunn., ex Hook., Bot. Mise., i. 244.— 
Enpu., Gen., n. 5265.—Mog., Prodr., 39.— 
Bentn., Fl. Austral., v. 147.— Hymenotheca K. 
Moett., Lragm., loc. cit. 
nocarpus australis BENTH., Fl. Austral., v. 148, 
n. 2. 
7 DesF., in Mém. Mus., viii. 116, t. 10.— 
Moa., Prodr., 89, n. 2.—G. pungens LINDL, in 
Mitch. tree Exped., ii. 121.—G. accciæformis 
F. Mvett., in Linnea, xxv. 439.— Codonocarpus 
cotinifolius K. Muezz., Pl. Vict., i, 200.— 
Bentu., Fl. austral., v. 148, n. 3. 
8 Except perhaps G. subnudum (G. bra- 
chystigma F. MuElx., ex BENTH., il, Austral., 
v. 146, n. 1;—Amperea? subnuda N&Es, in 
Pl. Preiss., ii. 229), of which only the tops are 
known, 
