not plumose.—Here are two species, apparently only 
two, but both polymorphous, not nearly related to each 
other. 
4. C. Pircuerst, Torr. and Gray, Fl. N. Am. Ranges 
from the Mississippi River near St. Louis to Texas and 
Northern Mexico. The general character of the flowers 
and the conspicuous reticulation of the leaflets (especially 
in age and in exposed situations, when they become thin- 
coriaceous) have caused certain forms of this species to be 
confounded with C. reticulata, as in Pl. Wright. ii. p. 7. 
But its characters are quite distinct. The calyx is more 
similar, but greener and less canescent. As to the carpels 
there are two forms, and transitions between them: one 
(letostylis) with the filiform styles completely glabrous 
from the first; in the other (lastostylis) they are appressed- 
silky or villous, either only below or for their whole length. 
It is this latter form which has been mistaken for C. reticu- 
lata, yet it is also the one (from Arkansas) upon which 
C. Pitcheri was founded. Perhaps C. Bigelovit, Torr. and 
Gray in Pacif. R. R. Exped. iv. 61, is the same; but there 
is no specimen at Kew. In Mexico it passes into C. filifera, 
Benth. Pl. Hartw. p. 285, which has also both glabrous and 
pilose styles. 
5. C. ortspa, L., founded wholly upon the ‘ Clematis 
flore crispo” of Dillenius—the figure and description of 
which is unmistakable—inhabits the low country from 
North Carolina, and perhaps Virginia, to Hastern Texas. 
Well marked by its membranous foliage with lax venation, 
and by the conspicuous dilated and undulate margins to 
the upper and spreading part (commonly half) of the sepals 
when fully expanded. Styles always pubescent, sometimes 
as hairy as is represented in Gray, Gen. Ill. tab. 2, never 
plumose. Here belong the figures in Bot. Mag. tab. 1892, and 
Bot. Reg. xxxii. tab. 60; C. cordata, Bot. Mag. tab. 1816; 
O. cylindrica, Bot. Mag. tab. 1160; also C. Viorna of Andr. 
Bot. Rep. tab. 71. But the OU. crispa of De Candolle is 
the §. European C0. campaniflora, C. parviflora, D.C. &e. 
The division and form of the leaflets is excessively variable ; 
moreover the species begins to blossom when low, erect, 
and quite herbaceous. 
