4 Edward L. Greene. 
At the lower end of Donner Lake in the Sierra Nevada of middle 
California, collected by A. H. Heller, 13 July, 1903, and by him 
distributed under no. 6917. "The follicles are constantly and very plainly 
divergent, though less so than in the otherwise very different A. tricorne 
described above. | 
26. Aconitum cheirophyllum Greene, nov. spec. 
Folia tenuia laetevirentia utrinque glaberrima, 10—15 cm lata, infra 
medium exacte palmatisecta, inferiorum segmenta subquadrato-oblonga, 
superiorum cuneato-obovata, omnia acute plus minus profunde incisa; 
flores mediocres saturate caerulei; sepala anteriora lanceolata, galea 
late subconica obtusa, rostro subulato porrecto; folliculi glaberrimi. 
Of the Sierra Nevada of southern middle California, collected 
by Mr. Culbertson, 28 August, 1904, at Jordan Sulphur Springs, and 
presumably distributed by C. F. Baker under his no. 4565. But two 
species are confused under this number, at least in my set of the plants 
of Culbertson; and I should not have attempted the determination of a 
new species out of this mixture but for the strong character of the 
foliage of this one described above. It is the only instance known in 
American Aconitum of a genuinely palmate leaf, the base of it being 
almost truncate and so without a sinus, the segments all pointing for- 
ward from, instead of radiating arond, the summit of the petiole. The 
racemes with which such leaves an connected show rachis and pedicels 
quite villous-hirsute; but the one large and terminal raceme in my set 
is severed from all connection with any foliage at all; and in this both 
rachis and pedicels an perfectly glabrous; a thing most unusual in itself, 
and a proof that two things are confused under the number. 
27. Aconitum obtusiflorum Greene, nov. spec. 
Caulis erectus metralis crassulus subfistulosus glaber albescens; folia 
omnia, etiam superiora, longe petiolata, tenuia, laete virentia, utrinque 
glaberrima, 9—13 cm lata, profunde 5-partita, segmentis late subcunei- 
formibus apice trifidis, lobulo terminali trifido lateralibus inaequaliter bi- 
fidis; racemus laxus, strictus, 9—15-florus; flores mediocres saturate 
caerulei; sepala anteriora sat magna, latissime ovato-rhomboidea, acuta, 
galea breviter subconica, rostro vix ullo. 
About Marlette Lake, Washoe Co., Nevada, 29 July, 1902, C. F. 
Baker, no. 1390. Well marked by the large very broad lower sepals, 
and almost obsolete beak of the galea. 
28. Aconitum subcaesium Greene, nov. spec. 
Caulis robustus metralis superne ramosus, ramis rigidulis patentibus 
laxifloris; herba praeter inflorescentiam viscoso-hirtellam glaber glauces- 
cens; folia profunde 5-partita, segmentis cuneato-obovatis infra medium 
duplici modo incisis; racemis 7—15-floris, florum pedunculis patentibus; 
flores sat magni violacei, sepala anteriora liguliformia; galea elongata, 
sacco subcylindrico, rostro majusculo deorsum spectante; folliculi elongati, 
erecti, glaberrimi. 
Known only as collected by the writer near the limits of snow in 
