ORDER 44. ROSACES. 103 



1 4 P. ARMEMACA Willcl. Apricot. Lvs. broadly ovate, acumiiiate, subcordate at base, 

 denticulate; stip. palmate ; fls. sessile, subsolitary ; drupe large, subglobous. From 

 Armenia. 10 15f. Fruit purple-yellow, 12'. 



1 5 P. DASYCARPA Ehrh. Black Apricot. Lve. ovate, acuminate, doubly serrate ; peti- 

 oles with 1 or 2 glands ; fls. pedicellate ; drupe subglobous. From Siberia. 10 15f. 

 Fruit dark purple, in July. Flowers white, April. 



16 P. VULGARIS Mill. Peach. Lvs. lanceolate, serrate, with all the serrature? acute; 

 fls. solitary, subsessile, preceding the leaves ; drupe tomentous. Persia. 8 15f. Fls. 

 rose-color, with the odor of prussic acid. Fruit yellow-purple. 



/3. L^VIS. Nectarine. Drupes glabrous, yellow, purple, red, large. 



17 P. COMMENTS. Almond. Lvs. lanceolate, serrate, with the lower scrraturcs glandu- 

 lar ; flowers sessile in pairs. Barbary. 15f. Varies with flowers double. 



1 8 P. NANA. Dwarf single-flowering Almond. Lvs. ovate, attenuate at base, pimply 

 and finely serrate ; flowers subsessile. Russia. 3f. May, June. 



19 P. LANCEOLATA. Dwarf double-flowering Almond. Lvs. lanceolate, doubly serrate ; 

 fls. pedicellate, covering the stems. China. 2 3f. Roseate. (Amygd. pumila, Ait.) 



3. SPIRJEA, L. Calyx 5-cleft, persistent, Pet. 5, roundish. Stam. 

 10 50, exserted. Carp, distinct, 3 12, follicular, 1-celled, 1-2-valvcd, 

 1-10-seeded. Styles terminal. J> if Branches and leaves alternate. Flow- 

 ers white or rose-colored. Fig. 244. 



Shrubs, with stipulate, simple, lobed leaves. Carpels inflated No. 1 



Shrubs, with stipulate, pinnate leaves. Carpels 5, united. Exotic No 2 



Shrubs, without stipules. Leaves simple. Ovaries distinct., .(a) 



a Flowers in umbels or corymbs, o Corymb compound, terminal. Mts No. 3 

 6 Clusters many. Gardens. Exotic.. .Nos. 4 7 



a Flowers in a terminal panicle, c roseate-purple Nos. 8, 



c white, rarely blush-colored : .Noi. 1012 



| Herbs, without stipules. Leaves tripinuate. Ovaries 5, drooping No. 13 



Herbb, stipulate. Leaves pinnately divided. d Flowers rose-purple No. 14 



d Flowers white Nos. 1517 



1 S. opulifolia L. Ninebark. Lvs. roundish, 3-lobed, doubly serrate ; fls. white, in 



pedunculate corymbs ; carp. 35. By streams. Rare. 4f. June. 



2 S. SORBIFOLIA. Lvs. odd-pinnate ; Ifts. lanceolate, acuminate, doubly serrate, termi- 



nal one lobed ; fls. white, in terminal panicles. Siberia, (if. May. 



3 S. corymbosa Raf. Lvs. ovate, cut-serrate above, whitish beneath ; fls. innumer 



able, white or roseate, in a dense, level-topped corymb; styles and carpels generally 3. 

 Pcnn. Ky. and S. 1 2f. May, June. 



4 S. HYPERICIFOLIA. SI. Peter" s Wreath. Lvs. obovate-oblong, suben tire ; fls. in many 



lateral clusters, on short branches, white, mostly double. Europe. 3f. May. 



5 S. PUUXIFOLIA. Branches virgate ; Ivs. ovate, petiolate, serrate, 5-veined, silky be- 



neath ; fls. in 3's 5's (very double), white. Japan. Beautiful. 



6 S. REEVESIANA. Lvs. lanceolate, serrate, 3-lobed or pinnatifid, glaucous beneath ; rao. 



capitate, pedunculate, often forming long wreaths. June. 



7 S. TRILOBATA. Lvs. roundish, lobed, crenate, veiny : fls. eorymbed. Alps. 



8 S. tomentosa L. Hardhack. Rusty tomentous ; Iva. lance-ovate, Binoothish above, 



serrate; rac. short, dense, aggregated into a dense thyrse-like, terminal panicle ; carp. 

 5. Pastures, thickets. Common. 2 3f. July, Aug. t 



9 S. DOUGLASII. Much like No. 8, but larger, smoother, and with redder fls. Oregon. 



1 S. salicifolia L. Nearly smooth ; Ivs. lanceolate to oblanceolate, serrate ; rac. 

 panicled, dense or lax, white, often with a blush ; carp. 5. Meadows, thickets. Com 

 mon. Stem purplish. 3 4f. Stam. conspicuous as in other species. July, t 



1 1 S. ARI.EFOLIA. Lvs. elliptic-oblong, crenately lobed and toothed ; fls. innumerable 

 in large, terminal ranicles, white. Oreg. 6 12f. Stems virgate. Jjie, July. 



