— 3 1 
G,?(3i)J 
lartilaginous margin decurrent from the terminal spine. The 
presence of a trunk, the proportions of the leaf (in A. rigida and 
all its varieties the length equals 12-14 times the width), proba¬ 
bly the form of the terminal spine; the character of the inflores- 
SSence, and, above all, the form and proportions of the flower and 
ts parts, remain constant, and perhaps also the proliferous char¬ 
acter of the inflorescence of some species. 
:Mp]i5.' Agave Palmeri, n. sp. : acaulis ; foliis lanceolatis sursum 
gave to theplag| %ttenuati^ in spinam gradient teretem ultra medium canalicula- 
most valuabfeKr tarn excurrentibus, margine aculeis insequalibus saepius recurvis 
troduced bj^liiMKflexuosisve atro fuscis dentato ;^florum albidorum pedicellis brae¬ 
's ago, during®, $,t e is abbreviatis carnosis fultis ; ovario perigonio aequali seu paulo 
ropical plants Rfeongiore, tubo lobis vix longiore stamina longe-exserta medio vel 
forts which w® :fpaulo supra gerente ; capsula gracili prismatica brevi-cuspidata 
t which werejBfcrin stipitem contracta, seminibus minoribus minute verruculosis. 
ubsequent IndiBfc In the mountains of Southern Arizona Bt. Schott collected the 
successful, '^® flowers in ti kfi ; in 1869, Dr. E. Palmer, who during ten years 
at Key West art f'has made Arizona and 'th^ adjacent regions the field of his explo- 
in full bloom K;^rations, and for whose services to botany in that district this 
tion of it: tnm)- ^species is named, gathered more complete specimens and seeds; 
eet long and 4® and last year, 1874, Dr. Rothrock, of Lieut. Wheeler’s expedi- 
ind there be^rif tion, brought very fine specimens found there at an altitude of 
■I teeth ; termiiKf'6,300 feet.—FI. July and August. 
De 20 or 25 This species seems to take in the southern part of Arizona the 
ie of the largept replace of A. Parryi of the northern part of that territory, and is 
the largest (neift used there for the same purpose; it is easily distinguished from 
orter. The floiL, fit by its longer and narrower leaves, the much less deeply divided 
a shorter thickfflPST^ r lg on ’ an d the slender capsule and small seeds.—Leaves 10-20 
inches long, 2-2Lwide, slightly contracted above the base, long 
pointed; terminal spine 8-14 lines long, deeply channelled to 
above the middle, decurrent with brown, horny margins about 2 
inches; lateral teeth i-| inch apart, 15-2 lines long, often inter¬ 
spersed with smaller ones, straight, or usually hooked, or often, 
^specially the lower ones, flexuous. Scape 8-12 feet high (bracts 
not noticed by the collectors) ; branches of the panicle repeatedly » 
and loosely ramified, ultimate pedicels crowded, about 1 line long. 
Flowers i f-2 inches long; perigon 10-1,2 lines long, whitish ; 
filaments, anthers, and style, purple ; lobes usually a little shorter 
than the tube, exterior ones strongly cucullate and much thick- 
IQ MlSS.Ol 
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