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A. sanguinea. These, together with a low scrubby oak tree, with small 
perennial leaves, were the only trees collected about Cosihuiriachi. A • 
species of Juniperus, with red berries, a Thuja , and a small-leaved^Cb-'jr^ 
wania (? ) 2 7 ail of them in fruit, were also brought from there. 16 , 
Between Chihuahua and Cosihuiriachi, but especially about the latter 11 c 
"place, the porphjritic soil produced a number of Cactaceae, some strang^ stron | 
Echinocacti , several Mammillariae, a few Opuntiae, and principally a 1 - , 
great variety of Echinocerei. One of the latter is completely covered with"' 1 ? 
stout and long spines; 28 another has short radiating spines, closely ad-f (!e 
pressed to the plant; 89 a third‘has short radiating spines, with single, stout 1 ? 
black central ones, which project from the plant in all directions; 30 a r 
fourth is distinguished by its longer and curved reddish radiating spines, 11 onf 
with a stouter one projecting from their centre. 31 I have all of these in. 
Bor bris 
2 7 Cowania sp. ? Shrubby; leaves crowded, small, cuneate I three * 1lich 8 
toothed at apex, re volute, tomentose below, glabrous and glandular abo vejltnmil 
sweetscented; turbinate tube of calyx, as well as the oblong lobes, 1 lines; tube 
long; 25 stamens, persistent; about 5 woolly ovafies.—Compare belofgb, juoi 
^note 51. ' # gjjjbui 
2 8 Echinocereuspolyacanthus, n. sp., elongato-ovatus, 10-costatus; areo- d |S( 
lis elevatis, ovatis, subapproximatis, junioribus albido^-tomentosis; aculeis i'ribu: 
radialibus 10-12 flavidis, apice adustis, plus minus porrectis; lateralibus ;sen 
majpribus, demum subadpressis,superioribus Uiinoribus; centralibus sub-4 ttriac 
corneis, apice fuscis, 3 superibribus sursum versis, inferiore singulo lorn- vercl 
giore porrecto, demum deflexo. . Mffm ai 
Cosihuiriachi.—Several oval stems, 4 to 5 inches high and 2| to 3 in 
diameter, from one base; upper radial spines 4 to 5, lateral and inferior 8 to 
10, upper central 9 to 12, lower one 15 to 20 lines long. Spines at last , (|ll 
ashy-gray. - . . - H* l 8 
29 j Echinocereus adustus, n. sp., ovatus, 13-15-costatus; areolis elevatis,;'®perio 
lanceolatis, approximatis, junioribus albo-tomentosis; aculeis radialibus JL6- !s dus( 
18 adpressis, albis, apice adustis; 4-5 superioribus brevibus* setaceis, late-^iiria( 
ralibus inferioribusque longioribus, robustioribus, centrali nullo. * gPound 
Cosihuiriachi.—Plant 1^ to 4 inches high, 1 to 2 in diameter; upper 1 3 * * * * °fwhi 
spines 1, lower about 2, and lateral 4 to 5 lines long. .* j Band 51 
3 0 Echinocereus radians, n. sp.y ovatus 13—14-costatus, areolis elevatis. n " 
ras;, : f (r ( 
ovatis, subapproximatis, junioribus albo villosis; aculeis radialibus 16-2^ ,p| 
adpressis, junioribus apice adustis, superioribus brevibus setaceis, lateral! n- ( e ; 
bus inferioribusque longioribus robustioribus; centrali singulo porrecto, ro 
busto,fusco. • 8 V ’ 1*!® 
Cosihuiriachi. —2\ inches high, 2 in diameter; upper radial spines 
2, lower 3, lateral about 5 lilies long; central spines brown or black, mud • 
M 
stouter, 1 inch long. 
31 Echinocereus rujxspinus, n. sp., elongato-ovatus, 11-costatus; areOlisit. 
elevatis lanceolatis, approximatis, junioribus albido villosis; aculeis radial! 
bus 16-18, demum adpressis, intertextis; 3-5 superioribus setaceis, brevj 1Sn v ?1 
bus, albidis; lateralibus elongatis fusers, recurvis, centrali singulo, robu^i^i^^ 
fusco, porrecto. * 'wpalisi 8 
Cosihuiriachi.—Stem 4 inches high, below 2\ in diameter; upper ra®^. n § 
