Cerasus.] ROSACEA. Igg 



Sect. II. Laurocerasus. DC, Flores racemosi e ramis ortL 



7. C, emarginata; racemis corymbosis, pedicellis elongatis segnientisque calycinis ovatis 

 obtusis reflexis glabris, foJiis ovalibus minute dentato-serratis glabris basi acutis bigJandulosis 

 apice obtusis s^pe emarginatls, fructu ^ohoi^o.— Douglas, MSS, apud Hort Soc?Lond. 



Hab. On the upper part of the Columbia River, especially ahout the Kettle Falk. Douglas,— T\\\9, Mr 

 Douglas describes as a " low shrub, 4-8 feet high, with very red wood niaiked « idi wliite spote, and an 

 astringent fruit.— The leaves are about two inches long, quite glabrous, as is the Avliole plant Racemes 

 about the same length as the leaves, and produced at the same time with them, having lower jiodicols 

 especially so long as to be corymbose. 



8. C. mollis; racemis breviusculis calyceque (segmentis reflexis) pubo^ronti-tomentosis, 

 foliis obovato-oblongis crenatis subtus pubescentibus, fructu ovato. — Douglas^ MSS. 



Hab. North -West coast of America, near the moutli of the Columbia, and on subalpine hills, near tbc 

 source of that river. Douglas, Fort Vancouver. Dr, Scolder.—" A small tree, 12-25 feet liii:h, beariiiL' a 

 considerable resemblance to the C.puhescens of Michaux." Dowjhts, MSS. — The young branches me dark 

 brown and downy, the racemes and leaves very downy beneath. Racemes much shorter than in the follow- 

 ing species. 



9. C Virginiana; racemis erectis elougatLs, foliis deciduis ovali-oblongis acuminatis serra- 

 tis supra nitidis utrinquc nudis, petiolis sub4-glandulosis, fructu globoso atro-rubro. — Mich, 

 Am> V. \. p. 283. De Cand, Prodr. i\ 2. p. 539. Mich. N. Am, Sylv, ed. Am, v, 2, p. 204. 

 /. 88. — Prunus Virginiana. Linn, Sp. PI, p, 677. Pursh, Fl, Am, v, 1, p. 329. Rich, in 

 FranJtl, 1st Journ, ed, 2. App, p, 18 ? BigeL Fl, Bost, ed. 2. p, 192. Torrey, FL of Un, St, 

 V. 1. p, 467. 



Hab. Canada ? — This forms a large tree, according to Michaux, in the southern states attaining from eighty 

 to one hundred feet in height. It is the Tawquoy-meen-ahtik of the Crees, according to Dr. Richaidsou, rising 

 on the sandy plains of the Saskatchawan to twenty feet, but extending as fiu* north as the Great Slave 

 Lake, lat. 63°, where it attains the height of five feet only. Its fruit, termed Tawqvoy-meenn^ (or Choke- 

 Cherry^ is not very edible in a recent state, but when dried and bruised, it forms an esteemed addition 

 to Pernmican. As far as I can judge, hoAvever, from the numerous specimens I luive received from Canada 

 and the British Possessions, these observations will rather refer to the Cserotina than to the C. Virgmiana: 

 for the former is very abundant in the north, while the latter seems to abound in, if it be not w holly con- 

 fined to, the middle and southern states. 



10. C seroti7m; racemis elongatis dcmum pendulis, foliis deciduis ovalibus obovatisve 

 breviter acuminatis opacis acutissinie serratis, subtus in axillis barbatis, petiolis iiubbiglan- 

 dulosis, fructu globoso atro-rubro. — Loisel. in Duham, ed, nov, 5. p, 3. De Cand, Prodr, v. 



2, p. 540.— Prunus serotina. Ehrh,— mild, Sp, PL v. 2. p, 986. '' Fjusd. Arb. p, 239. t, 5. 

 / 2." Torrey, Fl, of Un. St, v. I. p, 467. Elliott, CaroL v. I. p. 551.— P. Virginiana. AlilL 

 et alior?—V. obovata. BigeL FL BosL ed, 2. p. 192.— P. Canadensis. WlUd. Sp. PL v, 2. 

 p 986. — Cerasus Canadensis, Dc Cand, Prodr, v, 2. p. 539, 



Hab. Throughout Canada, and extending from Lake Huron (Dr. Todd) as far as north lat, G2°; and 

 from Newfoundland {Dr. Morrison, Mr. Cormack) and Hudson's Bay on the ea-st, to the mouutain-vallies 

 ^vest of the Rocky Mountains ; where, however, by the banks of streams, in sandy soils, it rarely rises more 

 than 2-4 feet high, (Douglas.) — That Michanx and others have confoimded the C. serotina with the 

 C, Virginiana is quite certain, but it is still \vith me a matter of great doubt how far the two are entitled to 



VOL. I. 



