[26] 106 
The specimen communicated by Dr. Wislizenus, the only one found, was 
dead when it arrived. here, but many fruits were adhering " the plant, 
and I was thus fortunate enough to cultivate it from the see 
Other remarkable cactaceae from the State of Chihuahua, atic have 
en communicated to Dr. Wislizenus by Mr. Potts, of Chihua hua, are 
not described here, as it is believed that Mr. P. has sent them already to 
England, where, no doubt long before this, they have been published. 
Amongst the other distinguished plants of Cosibuiriachi and Llanos, I 
eer omit to — a beautiful Delphinium,?* which grew abundantly 
here; a Silene, which i rhaps new, but comes near to S. multicaulis, 
Natt ; mn the ear mountains, a and 8. Moginiana, DC of Mexico; a new 
Bowvardia,** which is remarkably distinct from all the other Mexican 
species of this genus by its sommes an Elcheveria perhaps identical 
with the Californian #. caespito . DC.; veral Gerania, which appear. 
to be undescribed, one of them with white y settee an Eryngium,'” with 
Cosihuiriachi.—The only specimen seen was about 2 inches in diame- 
ter; tubercles 4 lines long; spines 3 to 4 lines in length; fruit 5 to 6 lines 
long, in a circle around. the younger tubercles; seeds ‘obovate scrobiculate, 
dark brown, minute. 
$5 Delphinium Wislizent, D. sp., perenne, erectum, simplex, glabrum ; 
petiolis elongatis, infimis basi dilatatis ; foliis pedatifide 5-7-parutis, laci- 
ii , segmenti 
cs Sar sce sone Beavee: longe pedicellatis ; calcare 
sepal o supera alis 2 exterioribus acutis, 3 
ecoioctor ras ae bra ‘he de diy acuminatis; ovariis elaber- 
ne: 
e Bufa, a porphyry rock near sAagepes tis 8,000 feet high, in 
tower i in Septem mber. Stem 2 to 23 feet high, slender, glabrous, glau- 
; flowers sparse, with the spur Ll} inch long, beautifully blue, on the 
witaile hehe puberulent. 
86 Bouvardia glaberrima, n. sp., glaberrima, caule erecto terete ; foliis 
ternatis, breviter peticlatis, ovatolanceolatis, ultrinque acuminatis, patenti- 
eflexis; cyma composita, foliacea; calycis segmentis tubum bis 
su aperantibus ; corolla calyce quintuplo s. sexuplo longiore, i glabri- 
uscula, intus parce barbata. 
Cosihuiriachi, aake September. Perennial; 2 feet high, leaves 3 to 
34 inches long, 8 to 10 lines wide; flowers bright crimson, 12 to 15 
lines long. Apparently one of the lar shoe ane of the genus; leaves 
entirely glabrous, not revolute on the mar 
°" Eryngium heterophyllum, n. sp. “ slaerrimam, caule anal poe 
radicalibus oblanceolato-linearibus, acutis, penni-nerviis, serratis 
ris: cartilagingo-marginatis, aristatis ; ‘folie caulinis inferioribus pina 
pinnati. rioribus palmati-partitis, segmentis linearibus incisis; 
foliis involucralibus 10-13 linearibus acuminatis, spinoso- bidentatis, rarius 
‘integris, capitulum ovale longe superantibus;.bracteis coeruleis subulatis 
own ‘superantibus, interioribus longioribus. 
hi; flowers September. Biennial, 
_. feet high; radical leaves 2 inches lange 2 iinet wide; involucral 
fees oct ee, Pine ine heads a 4 lines in diameter. 
