TAB. 6156. 
PHYLLOCACTUS sarrormis. 
Native of Honduras. 
Nat. Ord. Cacre#.—Tribe EprrrHyLLe®. 
Genus Paytiocactus, Link. ; (Benth. § Hook. f. Gen. Pl., vol. i. p. 849). 
Puytuocacrus biformis; caule tereti flexuoso, ramis complanatis oblongis 
lanceolatis v. elongato-lanceolatis in petiolum crassum angustatis’ 
crenato-serratis obtusis v. subobtusis, costa crassa, ovario cylindraceo 
squamulis minutis sparsis, perianthii infundibuliformis segmentis 8-12 
sub-biscriatis anguste lanceolatis acuminatis roseo-purpureis exteriori- 
bus angustioribus staminibus 6-12, stigmatis radiis 4—5, bacca parva 
lageeniformi. gor 
Puytiocactus biformis, Labouret, Monog. Cact., p. 418. 
Disocactus biformis, Lindl. in Bot. Reg., 1845, t. 9; p. 77. 
Distsocactus biformis, Salm Dyck, Cact., p. 57; Lemaire, Les Cactées. 
Cereus biformis, Lindl. in Bot. Reg., 1843; Misc., p. 33. go 
A very pretty and distinct species of Piyllocactus, differing 
from all others in the few perianth segments and stamens, on 
which account Lindley made a new genus of it, under the 
name of Disocactus—from Sic, two, woc, equal, and xaxroc, 
in allusion to the equal number of petals and sepals in the 
. specimen he figured, which presented four of each. The 
wwoc he appears to have dropped, no doubt for the sake of 
euphony, but it has been taken up by Salm Dyck, and the 
amplified name retained by such subsequent authors as have » 
held to the genus being a good one. : Py 
For my own part, I entirely agree with Labouret in merge 
ing the genus into Phyllocactus, from which it differs in 
nothing but the fewer perianth segments, the distinction of 
which into an inner and outer series is not so evident in the 
specimen here figured. Dr. Lindley’s plant further differs 
from that here figured in its outer segments being more 
slender, almost filiform, and the inner comparatively broader 
and closer placed. / 
Phyllocactus biformis is a native of Honduras, whence it 
was introduced by G. Ure Skinner, Esq., in 1839. He sent it 
APRIL Ist, 1875. 
