208 BOTANICAL GAZETTE. [ August, 
them to become sternotribe, should finally become the — 
est specialized of nototribe flowers, far outst pp aaa ai 
which became nototribe more readily, and assuming adapta- 
tions which aim at all parts of the upper sides of mae 
Thus, Orchis pyramidalis!8 fastens its pollinia on ee OPP 
side of the proboscides of Lepidoptera; O. spectabilis . 
ens them on the smooth part of the face of female hum ei 
bees ; Habenaria orbiculata, on the eyes of Sphingide; 
Calopogon parviflorus, on the first segment of the eee 
of small bees ;2° the Calopogon seems to have gone t ne 
some remarkable changes. From being regular and ie 6 
pollen indefinitely on the visitor, it first changed so as to et 
the ventral surface. Then, inverting, it fastened the Pe e 
on the upper side of the bee. Then it turned right ee 
again; but it has not, however, become again sternotr 
but remains the most remarkable of nototribe sagt is 
has quit turning upside down to strike the insect’s ie Me 
turns the insectgipside down to strike its stigma. i cite 
I know, Calopogon is the only nototribe flower of sha 
origin which is not inverted, Be 
Another nototribe flower, which is polypetalous, is ap 
tiens—at least, some of the species. They must have sai 
Sternotribe and then become inverted by becoming pen 
-lous.21 
‘Carlinville, IU 
Some notes on Western Umbellifere. II. 
JOHN M. COULTER AND nie N. ROSE. 
* Pencedanum Austinw, 1, sp. Resembling P. Hallii, but be 
leaf-segments larger and pinnate with narrow often toot 
cells: seed-face concave, with central longitudinal ridge. 
California. Plumas county (Mrs. PR. M. Austin, Retest 2 ca 
near Yreka (Greene 732). Distributed as P. Halli 
x de ee eee 
'S Darwin, “ Fertilization of Orchids,’”’ 16. 
19 Gray's “ Structun 
* Bor. G 
al Botany,” figs. 466 and 466a. 
- GAZETTE. XIr, 288, 
21 Flores pedicel] debi i ins 
anvstex slain © debili fulti. srenins 
et ealcat, 
propter pondus calearis invertunter, 
77 tiens- 
cum, anticum apparet. Benth. & Hook. Gen. Plantarum, 1, 277, 1mp@ : 
