ORDER 44. ROSACES. 103 



14 P. ARMENIACA Willd. Apricot. Lvs. broadly ovate, acuminate, stibcordate at. base, 

 denticulate ; etip. palmate ; fls. sessile, subsolitary ; drupe large, snbglobous. From 

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



1 5 P. UASYCARPA Ehrh. Slack Apricot. LVB. ovate, acuminate, doubly serrate ; peti- 

 oles with 1 or 2 glands ; fls. pedicellate; drupe subglobous. From Siberia. 10 I5f 

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



1 6 P. VULGARIS Mill. Peach. LVB. lanceolate, serrate, v ith all the serratures acute ; 

 fls. solitary, subsessile, preceding the leaves ; drupe tomentous. Persia. 8 15f. F-ls. 

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



ft. I^EVIS. Nectarine. Drupes glabrous, yellow, purple, red, large. 



17 P. COMMUNIS. Almond. Lvs. lanceolate, serrate, with the lower serratures 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, simply 

 and finely serrate ; dowers 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-valved, 

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

 ers white or rose-colored. Fig. 244. 



Shru os, 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., .(o) 



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



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



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



c white, rarely blush-colored NOB. 10 12 



Herbs, without stipules. Leaves tripinnate. Ovaries 5, drooping No. 13 



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



d Flowers white Nos. 1517 



1 S. opiillfolla L. Ntnebark. 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. 6f. 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. 

 Penn. Ky. and S. 1 2f. May, June.' 



4 S. HYPERICIFOLIA. St. Peter's Wreath. Lvs. obovate-oblong, snbentire ; fls. in many 



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



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



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



6 S. REEVESFANA. Lvs. lanceolate, serrate, 3-lobed or pinnat ifid. glaucous beneath ; rar, 



capitate, pedunculate, often forming long wreaths. June. 



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



8 S. tomentosa L. Hardback. Rusty tomentous ; Ivs. lance-ovate, smoothish above. 



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

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



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



10 S. saliclfolla L. Nearly smooth ; Ivs. lanceolate to oblanceolate, serrate; rac 

 paniclcd, 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. ARLEFOLIA. LVB. elliptic-oblong, crenately lobed and toothed ; fls. innumerable 

 In large, terminal panicles, white. Oreg. 6 12f. Stems virgate. J"ne, J Uy. 



