412 ROSACEiE. Nuttallia. 



St. Barbara, California, Douglas ! Nuttall ! On the mountains. — " A 

 small much branched tree, with rather large bitter and astringent fruit : the 

 leaves sometimes undulate and very rigid, and sometimes flat." Nutt. 



C. CapoUin (DC), which is the same with C. Capuli according to Schlech- 

 tendal, is cuUivated at St. Barbara, CaUfornia, according to Nuttall, who sends 

 us specimens under the name of C. longifoHus, Nutt. 7nss., which wholly agree 

 with those of Schlechtendal and of Bcntham {PI. Hartweg.) It belongs to the 

 section Padus, not to Laurocerasus, and is allied to C. serotina. 



C. Padus, C. semperflorens, C. persicifiora, and Prunus cerasifera, have been 

 considered natives of North America, doubtless mistakenly. 



Suborder III. ROSACEiE Proper. 

 Rosese, Sanguisorbese, PotcntilleEe, & Spiraeas, Juss. 



Calyx (5- or sometimes 3-4-clsft, and often with as many acces- 

 sary segments or bracteoles) free from the ovaries. Stamens occa- 

 sionally few in number. Ovaries solitary or several, with 1-2 or 

 more suspended or ascending ovules, distinct or very rarely com- 

 bined, sometimes included in the persistent calyx-tube : styles ter- 

 minal or lateral : stigma simple or slightly dilated. Fruit either 

 follicular and then 1-10 seeded, or 1-seeded achenia. — Herbs, shrubs, 

 or very rarely trees (with astringent properties), with simple or 

 compound leaves. 



Tribe I. SPIR^iE. Juss. 



Calyx campanulate, imbricate, or sometimes valvate in aestivation. 

 Carpels mostly 5 (rarely more, or even reduced to 1 or 2), verticil- 

 late, follicular or 2-valved in fruit : styles terminal. Seeds 1-8 or 10 

 in each carpel, pendulous or ascending. — Shrubs or small trees, 

 rarely herbs. 



Our Nuttallia forms an interesting transition from Amgydaleae to this tribe 

 (supposing it to comprise Kageneckia, «&c.) where, on the whole, we prefer to 

 place it. 



4. NUTTALLIA. Torr. 4- Gr. in Hook. S^- Am. hot. Beechey, suppl. 

 p. 336, t. 82, not of Dick. 



Flowers dioecious by abortion. CaljTc campanulate, 5-cleft ; the lobes 

 imbricate in sestivation, spreading, somewhat petaloid, deciduous. Petals 

 5, oblong-oval, slightly unguiculate. Stamens 15, in a double series^ of 

 which 10 are inserted, with the petals, into the margin of the coherent disk 

 which lines the tube of the calyx, and 5 (opposite the sepals) on its surface 

 at some distance below ; those of the fertile flowers similar, but all abortive : 

 filaments short, those of the lower series deflexed : anthers roundish, emar- 

 ginate at both ends. Ovaries 5, distinct, erect, obliquely obovate, glabrous 

 (wanting m the sterile flowers) : style somewhat lateral, filifomi, articulated 

 at the base, at length deciduous : stigma dilated : ovules 2, collateral, sus- 



