The specimen communicated by Dr. Wislizenus, the only one found, was dead when it arrived here, but many fruits were adhering to the plant, and I was thus fortunate enough to cultivate it from the seeds.
Other remarkable cactaceae from the State of Chihuahua, which have been communicated to Dr. Wislizenus by Mr. Potts, of Chihuahua, 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 Cosihuiriachi and Llanos, I cannot omit to mention a beautiful Delphinium,[1] which grew abundantly here; a Silene, which is perhaps new, but comes near to S. multicaulis, Nutt., of the Rocky mountains, and S. Moçiniana, DC of Mexico; a new Bouvardia,[2] which is remarkably distinct from all the other Mexican species of this genus by its smoothness; an Echeveria perhaps identical with the Californian E. caespitosa, DC; several Gerania, which appear to be undescribed, one of them with white flowers; an Eryngyum,[3] with
- ↑ Delphinium Wislizeni, n. sp., perenne, erectum, simplex, glabrum; petiolis elongatis, infimis basi dilatatis; foliis pedatifide 5-7-partitis, laciniis incisis, segmentis linearibus, acutis, divaricatis; floribus laxe paniculato racemosis; bracteis subulatis; floribus longe pedicellatis; calcare subulato, curvato sepala paulo superante; sepalis 2 exterioribus acutis, 3 interioribus obtusissmis; petalis brevioribus acuminatis; ovariis glaberrimis.
On the Bufa, a porphyry rock near Cosihuiriachi, 8,000 feet high, in flower in September. Stem 2 to 212 feet high, slender, glabrous, glaucus; flowers sparse, with the spur 112 inch long, beautifully blue, on the outside slightly puberulent.
- ↑ Bouvardia glaberrima, n. sp., glaberrima, caule erecto terete; foliis ternatis, breviter petiolatis, ovatolanceolatis, utrinque acuminatis, patentibus s. reflexis; cyma composita, foliacea; caiycis segmentis tubum bis superantibus; corolla calyce quintuplo s. sexuplo longiore, extus glabriuscula, intus parce barbata.
Cosihuiriachi, flowers September. Perennial; 2 feet high, leaves 3 to 312 inches long, 8 to 10 lines wide; flowers bright crimson, 12 to 15 lines long. Apparently one of the largest species of the genus; leaves entirely glabrous, not re volute on the margin.
- ↑ Eryngium heterophyllum, n. sp., glaberrimum, caule erecto; foliis radicalibus oblanceolato-linearibus, acutis, penni-nerviis, serratis, serratu lis cartilagineo-margujatis, aristatis; foliis caulinis inferioribus serratopinnatifidis, superioribus palmati-partitis, segmentis linearibus incisis; foliis involucralibus 10-13 linearibus acuminatis, spinoso bidentatis,rarius integris, capimlum ovale longe superantibus; bracteis coeruleis subulatis flores superantibus, interioribus longioribus.
Common in valleys about Cosihuiriachi; flowers September. Biennial, 112 to 2 feet high; radical leaves 2 inches long, 2 lines wide; involucral leaves 12 to 15 lines long, 1 line wide; heads about 4 lines in diameter.
Cosihuiriachi.—The only specimen seen was about 2 inches in diameter; 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.
