MONOGRAPH OF THE GENUS ALLIUM. 11 
giora, tricuspidata ; setis longis tortis. Anther ce purpureas, efFoetse nigrse '; 
poUine ochroleuco. Pistilla staminibus breviora, raro longiora. Ova- 
rium ovatum, viride, trigonum. Stylus teres, purpureus. Stigma album, 
obtusiusculum. Capsula trigona : loculis 2-spermis. 
Obs. Messrs Loddiges of Hackney received this plant 
from Canada under the name of Allium Canadense. I have 
little doubt but it is Allium vineale of Pursh. 
Sect. 4. — CsixAeJbliisque injlato-fistulosis. 
9. All. proliferum, caule basi folioso, umbella prolifera, 
spatha bivalvi, staminibus perianthio longioribus : dentibus 
brevibus obtusis, perianthii laciniis oblongis obtusis. 
Allium proliferum, Schrad. Cat. Hort. Gcet. 1812. Willd. enum. 1. 
p. 358. Link. enum. p. 320. Spreng. Sys. ii. p. 33. 
A. cepa, Var. /3 Bot. Mag. No. 1469. 
Hab. in Canada ? vel ^gypto ? Floret Julio. 
Bulbus rotundatus, solitarius, depressiusculus ; tunicis externis fusco- 
rubentibus. Folia disticha, cylindrica, fistulosa, inflata, acuta. Caulis 
basi foliosus, sesquipedalis, inflato-fistulosus, foliis longior. Spatha bi- 
valvis ; valvis ovatis acuminatis longitudine bulborum. Umbella bulbi- 
fera, prolifera ; bulbi rotundati, rubentes, viridi-striati, pedicellis mem- 
branis ramisque intermixti. Perianthium album, expansum : lacinise 
oblongge, obtusse, subcrenulatse, dorso lineolis viridibus. Stamina sequa- 
lia, perianthio longiora. Filamenta plana, alba, alterna basi latiora tri- 
fida; dentibus lateralibus brevibus obtusis, basi membranaceo conni- 
ventibus. Antherce luteo-virides. Pistilla staminibus breviora. Ovarium 
rotundatum, album, trigonum. Stylus teres, albus. Stigma acutius- 
culum. 
Obs. This species is cultivated in our gardens, not un- 
commonly, under the name of Tree-onion. 
