S6RBUS. ICOSANDRIA. DI PENTAGYNIA. 477 



't 



;]9. SOKBUS. L. 



Calyx 5-cleft. Petals 5. Sfi/les 2 or 3. i?(7r// 

 inferior, farinaceous, with 3 cartilaginous seeds. Gen. 

 pi. 855. JVu 1 1. Gen. I. p. 305. J ii s s. p. 335. 

 Lain. Hi. t. 434. Nat. Ord. RosACEit ///^,9. 



Service-tree. 



1. S. americana Willd- : leaves pinnate ; leaflets some- 

 ^vhat equally senate, and with the commou petiole Mivy 

 smooth. Willd. Enum, p. 5'20. Muhl. Cat. p. 50. 

 Pursh Ft. I. p. 341. S. Jucuparia 13. Mich. Fl. 1. p. 

 :^90. Big. Bust. p. 119. 



• A large shrub or small tree, with the younger branches pubes- 

 cent ; bark smooth. Leaves pinnate ; common petiole a ff)ot 

 or more in length, when young pubescent ; leaflets 7 pairs, 

 with an odd one, oblong-lanceolate, acuminate, unequally and 

 very acutely serrate, entire at the base ; under surface when 

 young very pubescent, but in the adult state quite smooth. 

 J^Iowers in compound terminal corymbs. Calijx witli 5 acute 

 teeth. jPcra/s white, roundish. .S^awzcns very numerous. Styles 

 usually 3. Berries globose, fulvous, slightly acid, remaining 

 on the tree all winter. 6'ei°d.s 3 — 5, oblong, compressed. 

 Hab. On mountains. Summit of the Fishkill Mountains. Near 

 Fairfield, New-York. Hadley. On high mountains near 

 Williams College. Dewey- At Cape-Ann, 8cc. Massa- 

 chusetts. Bi^elow, £cc. May. Mountain Ash. 

 A beautiful shrub, frequently attaining the heiglit of 15 or 

 20 feet. It is nearly allied to S. Aucufiaria of Europe, but 

 differs in the leaves being more sharply serrate, in the size and 

 colour of the fruit, Sec. ; still it may not be a distinct species. 



2. S. microcarpa Ph. : leaves pinnate ; leaflets ac\imin- 

 ate, acutely and incisely serrate, and with the common pe- 

 tiole smooth ; serratures setaceously mucronate. Pursh 

 F/. I. p. 341 . Elliott Sk. I. p. 555. S. Jucuparia «. 

 Mich. Fl. I. p. 290. 



A large shrub ; the younger branches covered with a shining 

 dark brown gloss. Berries small, scarlet. Pli. 



Hab. On the peaks of high mountains. New-Jersey to Caro- 

 lina. Purs h. 



320. SESUVIUM. /.. 



C«/z/x 5 -parted, coloured. Petals 0. Capsule ^u- 

 perior, ovate, 3-celled, opening transversely all romid, 

 manv-seeded. Gen. pi. 856. Niitt.. Gen. I. p. 306. 



