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COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 149 
46. CONIOSELINUM Hoffm. Gen. Umb. xxviii and 180. 1814. 
Calyx teeth obsolete. Fruit oblong, dorsally flattened, glabrous. 
Carpel with prominent dorsal and intermediate ribs (sometimes nar- 
rowly winged), and the laterals broadly winged and thickish. Stylo- 
podium slightly conical. Oil tubes usually solitary in the dorsal 
intervals, 1 to several in the lat- 
eral, 2 to 8 on the commissural 
side. Seed with plane or slightly 
concave face. 
Glabrous perennials (or inflor- 
escence sometimes puberulent), 
with ternate then pinnately de- 
compound leaves, ovate acute lac- 
iniately toothed or lobed leaflets, 
involucre more or less conspicu- 
ous or none, involucels of numer- \ Wi 
SA) [E” a. 
ous more or less elongated nar- yg. 4g —Conioselinum gmelini: a, 6: b. 8. 
row bractlets, and white flowers. 
The genus was described in 1814 by Hoffman, but redescribed in 
1816 with Condoselinum tataricum Hottm. (Gen. Umb. ed. 2. 185. 
1816) as the type. 
A genus of 9 species, belonging to the bor sal and north temperate 
4 
regions of both hemispheres, 5 of which are North American. 
In retaining this genus Drude recognizes 5 species (C. canadense Torr. & Gray, C. 
kamtschaticum Rupr., C. latifolivum Rupr., C. tataricun Hoffm., and CL univittatum 
Turez.). We add herewith 4 species, 5 of which we had heretofore referred to 
Selinum and one to Ligusticum. As thus organized the genus is a very natural one, 
of remarkably uniform habit. Its dorsally flattened fruit, with winged lateral ribs, 
and merely ribbed or less broadly winged dorsals and intermediates associate it in 
the alliance with Angelica, and quite apart from Selinum and Ligusticum, in which 
the fruit is laterally flattened and equally ribbed or winged. 
We exclude Selinum from our flora more through inference than from any definite 
knowledge of that genus. The type species is S. sylvestre L. Sp. Pl Ls 244, 1753, 
and, aside from meager descriptions, we haye seen only the plate of it published in 
Flora Danica. All the testimony we have indicates that it has a laterally flattened 
fruit, as Drude states, and is in the Ligusticum alliance. 
Involucels not scarious. 
Bractlets linear and mostly entire. 
Leaflets finely dissected. 
Bractlets inconspicuous; northeastern........---------------- lL. CL chinense. 
Bractlets conspicuous; northwestern .......------------------- 2. CL gmelini. 
Leaflets more coarsely lobed; Rocky Mountains....-.-.------ 3. C. scopulorum. 
Bractlets usually spatulate-linear and more or less toothed or lobed; Californian. 
4. CL pacificum. 
Involucels scarious...-....-------------- ee eee eee ee eee ee eee ee 5. C. dawsoni. 
