204i ONAGRARIiE. [Epilobium, 



i 



Sect. IL Sorbus. DC, 



2. P. Americana; foliis pinnatis, foliolis oblongis acutis subaequaliter serratis demum 

 glabris, pomis globosis (purpureis, PA., fulvis, Torrey,) — De Cand, Prodr, v. 2. p. 637. — 

 Sorbus Americana. Pursh^ PL Am. v, 1. p. 241. BigeL PL Bost ed, 2. p. 194. Torrey^ PL of 

 Un* St V. 1. p, 476.— Sorbus aucuparia, /3. Mich* Am, v, 1. p. 290. 



Hab. Canada, (Michaux^) and throughout the woody country. Dr, Richardson, Newfoundland. Dr. 

 Morrison. North-West coast of America as far north as Observatory Inlet, (Menzies, Dr, Scoulery) and in 

 the subalpine regions of the high mount^ns. Douglas. — In the leaves and flowers I can perceive no difference 

 between this and the Europsean P, aucuparia : in the former plant they are doubtless very conspicuously 

 downy when young. Pursh says the berries are purple, not scarlet, as in the Europsean species. Torrey 

 says they are fulvous. From the garden of the Horticultural Society of London, I possess a P^rus of 

 North America, which appears to hold the same relation to P. Americana, that P. pinnatijiday Sm. and De 

 Cand., does with P. aucuparia, where the pinnules are combined so as to form a lohed or piimatifid and 

 simple leaf. Whether the P, microcarpa of Torrey, (P. aucupariay «. of Michaux,) which has red fruit, 

 be different from this or its Europsean prototype, I am unahle to say. 



Sect. III. Adenorachis, DC. 



3. P. arlmtifolia ; foliis obovato-oblongis lanceolatisve crenato-serratis subtus pallidis reti- 

 culatim venosis costa supra glandulosa, floribus corymbosis. — «. foliis subtus praecipue ju- 

 nioribus calycibusque tomentosis, fructu rubro. P. arbutifolia. Linn, JiL SiippL p. 256, 

 Pursh, PL Am. v, 1. p. 339. BigeL PL Bost. ed, 2. p. 195. De. Cand. Prodr. v. 2. p, 637. 

 — Crataegus pyrifolia. Lam. — Mespilus arbutifolia. Linn, Sp. PL p, 685. — «. erythrocarpa. 

 Mich. Am, v. 1. p. 292. — Aronia arbutifolia. Elliott, Carol, v, 1. p. 356. Torrey, PL of 

 Un, St. V. 1, p. 478. — A. pyrifolia. Pers. — (3, melanocarpa ; foliis calycibusque glabris, 

 fructu nigro. Wiild. Sp, PL v, 2. p. 1013. — Mespilus arbutifolia, /5, Mich, Am. v, 1. p. 

 292. — Pyrus melanocarpa. WUld, Enum. p. 525. De Cand, Prodr, v. 2, p. 637. Pursh^ PL 

 Am, V, 1. p. 339. — Aronia arbutifolia, 13, Torrey, PI. of Un. SL v. 1. p. 479. — Aronia 

 melanocarpa. Elliott, Carol, v. 1. p. 557, 



Hab. Throughout Canada, from Lake Huron to the Sa*>katchawan. Newfoundland, Sir Alexander 



Cochrancy Dr, Morrison. — I can by no means consider the P. arlmtifolia, and melanocarpa of authors as 

 really distinct species. 



Ord. XXX. ONAGRARI^. Juss. 



' . Trie. I. Onagre^. 



1. EPILOBIUM.* Li7m. 



Calyx 4-phyllus deciduus. Petala 4. Stamina 8. Capsula linearis obtuse tetragona 4- 

 locularis 4-valvis polysperma. Semina numerosa, pendula, comosa. Lehm. — Herb«. Folia 

 opposita vel alterna. Flores axillares, solitarii aut terminales, spicati, in spicis altemi et uni- 

 bracteati, Corollae purpurea, rosece, suhcarne(B, rariter lutew. DC. 



The arrangement of the individuals of this and the two following genera, Gaura and (Enothera, together with 

 the descriptions of the new species, have been kindly undertaken by Professor Lehmann of Hamburgh. 



