1034 
ALLIUM longifolium. 
Long-leaved Purple Onion. 
—■+—- 
HEXANDRIA MONOGYNIA. 
Nat. ord. Asphodele.®. 
ALLIUM. Supra, vol. 9 .fol. 758. 
A. longifolium; foliis linearibus canaliculatis scapo longioribus, scapo semi- 
ancipite striato basi folioso, umbella suboctoflora congesta, staminibua 
edentulis. 
Scheenoprasum longifolium. Kunth. in H. B. nov. gen. et sp. 1. 2//. 
Allium longifolium. Spreng. syst. 2. 
Folia 2 -pedalia, linearia, striata, glauca, canaliculata, basi purpurea, 
dilatata, tactu scabriuscula. Caulis erectus, basi foliosus, foliis longior, 
solidus, glaucus, subangulatus, semianceps. Umbella parva, erecta, coarc- 
tata, multijlora. Spatha erecta, moupphylla, ovata, membranacea. Flores 
atropurpurei. Perianthium patens; laciniis lineari-lanceolatis, tequalibus, 
basi non imbricatis, medio sulcatis, altematim reflexis. Stamina patentia, 
filamentis purpureis subulatis, simplicibus, basi incrassatis et circa ovarium 
connatis. Ovarium subrotundum, obtuse trigonum; 3-loculare ; ovulis cieique 
loculo geminis collateralibus erectis. Stylus subulatus. Stigma simplex. 
Roots of this rare species of Allium were found unin¬ 
jured in the midst of a mass of decayed vegetable matter, 
which had been sent from the Mexican Real del Monte 
mines, in the form of paper and dried specimens, by 
Mr. John Brown, but which, owing to an accident, had 
been almost entirely decomposed by damp. When the 
package was examined in the Horticultural Society s 
garden, it was discovered that this Allium, a species of 
Pedilea, and one or two other plants, had found their 
decaying brethren convenient subjects for securing their 
own resurrection, and had shot forth living nwts among 
the half-rotten and dissevered members of the Berberries, 
Mallows, and Cacalias, by which they were surrounded. 
Found by Humboldt and Bonpland in Mexico, near 
Queretaro, Aroyozarco, and San Juan del Rio, at high 
