518 



Guelder-rose-leaved Spiraea. Fl. June, July. Clt. 1690. Sh. 

 5 to 6 feet. 



2 S. MONO'OYNA (Torrey, in ann. lye. 2. p. 194.) leaves broad- 

 ovate, slightly 3-lobed, deeply serrated, glabrous ; corymbs um- 

 bellate ; flowers monogynous ; lobes of calyx erectly spreading ; 

 ovaries villous. fj . H. Native of North America, on the 

 Rocky Mountains. Flowers white. Carpel solitary. 



Monogynous Spiraea. Shrub 3 to 4 feet. 



8 S. CAPITA' TA (Pursh, fl. amer. sept. 1. p. 342.) leaves ovate, 

 a little lobed, doubly serrated, tomentose, and reticulated beneath ; 

 corymbs terminal, crowded, somewhat capitate, on long pedun- 

 cles. J? . H. Native of North America, on the eastern coast, 

 and at the river Columbia. Cambess. 1. c. 1. p. 3(55. Flowers 

 white. Carpels 2. Said by Hooker to be a variety of S. opulifblia. 



Capitate-flowered Spirsea. Shrub 3 to 4 feet. 



SECT. II. CHAM^DRYON (Chamcedrys, the name of the ger- 

 mander ; form of leaves). Ser. mss. in D. C. prod. 2. p. 542. 

 Spirae'a species, Cambess. mon. spir. in ann. sc. nat. 1. p. 384. 

 Ovaries free. Torus free at the apex, but adhering to the 

 calycine tube at the base. Shrubs, with hermaphrodite flowers, 

 disposed in umbels or corymbs; pedicels undivided, 1 -flowered. 

 Leaves entire or toothed, exstipulate. 



4 S. ULMIFOLIA (Scop. fl. earn. ed. 2. vol. 1. p. 349. t. 22.) 

 leaves ovate-lanceolate, acute, flat, sharply serrated, glabrous ; 

 flowers disposed in sub-hemispherical, terminal corymbs ; sepals 

 reflexed. I? . H. Native of Carinthia and Siberia. Cambess. 

 1. c. 1. p. 307. Lois, in Duham. ed. nov. 6. p. 40. t. 13. S. 

 chamacdrifolia, Jacq. hort. vind. t. 140. Lindl. bot. reg. t. 1222. 

 Lodd. bot. cab. 1042. Flowers white. 



Var. ft, phylldntha (Ser. mss. in D. C. prod. 2. p. 542.) sepals 

 distinct, stipitate, transformed into verticillate, lanceolate, sharply 

 serrated leaves ; petals and stamens wanting, or if present more 

 or less deformed. S. foliosa, Poir. diet. 7. p. 353. 



Elm-leaved Spiraea. Fl. June, Jul. Clt. 1790. Sh. 3 to 5 ft. 



5 S. FLEXUOSA (Fisch. in litt. and Cambess. 1. c. p. 365. t. 

 26.) leaves lanceolate, glabrous, dentately serrated from the 

 apex to the middle ; flowers disposed in corymbs. Fj . H. Na- 

 tive country unknown. S. alpina, Hort. par. ex Cambess. and 

 Fiscli. in litt. Perhaps only a variety of S. ulmifolia. Flowers 

 white. 



Flexuous Spirasa. Fl. Ju.Jul. Clt. 1820. Sh. 4 to 6 feet. 



6 S. CRATjEGiFOLiA (Link. enum. 2. p. 40.) leaves obovate, 

 obtuse, doubly serrated in front, glabrous ; corymbs terminal, 

 compound, subcapitate. Tj . H. Native country unknown. 

 Flowers white. 



Hawthorn-leaved Spiraea. Fl. June, July. Clt. 1823. Sh. 

 4 to 6 feet. 



7 S. BE'LLA (Sims, bot. mag. 2426.) stems glabrous, rufous ; 

 leaves ovate, glabrous, serrated, petiolate, glaucous beneath ; 

 lobes of calyx deflexed ; cymes terminal, spreading, and are as 

 well as the branches pubescent. Jj . H. Native of Nipaul. 

 Shrub erect, branched, with the habit of S. chamcedrifblia. 

 Flowers beautiful red. Carpels 5, shining. 



Pretty Spiraea. Fl. July, Aug. Clt. 1820. Sh. 2 to 3 feet. 



8 S. ciiAiLEDRiFOLiA (Lin. spec. 701.) leaves ovate, deeply ser- 

 rated at the apex, pubescent ; flowers disposed in hemispherical 

 corymbs; pedicels slender, elongated; sepals veiny, reflexed. 



17 . H. Native of Siberia, Kamtschatka, Dahuria, and north- 

 west coast of America. Cambess. 1. c. 1. p. 362. Pall. fl. ross. 1. 

 p. 32. t. 15. Flowers white. 



Germander-leaved Spiraea. Fl. June, July. Clt. 1789. Sh. 

 1 to 2 feet. 



9 S. BLU'MEI ; leaves obovate, obtuse, deeply toothed at the 

 apex, smoothish ; cymes pedunculate, terminal, and are as well 



III. SPIRAEA. 



as the calyxes glabrous. fj . G. Native of Java and Japan. 

 S. chamaedrifolia Japonica, Blum, bijdr. 1114. Flowers white. 

 Blume's Spiraea. Shrub 3 to 6 feet. 



10 S. MEDIA (Pursh, fl. amer. sept. 1. p. 342.) leaves obo- 

 vate, few-toothed at the apex, rather villous ; corymbs pedun- 

 culate. Jj . H. Native of Canada. S. chamaadrifolia ft, me- 

 dia, Ser. in D. C. prod. 2. p. 542. Flowers white. 



Intermediate Spiraea. Fl. June, Jul. Clt.? Sh. 1 to 2 feet. 



11 S. OBLONGIFOLIA (Waldst. et Kit. pi. hung. 3. p. 261. 

 t. 235.) leaves oblong- lanceolate, narrowed at thebase, deeply 

 serrated at the apex, or entire, pubescent, ciliated ; corymbs pe- 

 dunculate. Jj . H. Native of Hungary. Flowers white. Like 

 S. chanuzdrifolia in the form of the leaves, but sufficiently dis- 

 tinct. 



Oblong-leaved Spiraea. Fl. May, Ju. Clt. 1816. Sh. 3 to 6 ft. 



12 S. LANCEOLA V TA (Poir. diet. 7. p. 354.) leaves lanceolate, 

 deeply serrated, glabrous, paler beneath ; umbels few-flowered, 

 axillary, pedunculate. Tj . G. Native of the Mauritius and 

 China. S. Cantonensis, Lour, cocli. p. 322. ex Cambess. 1. c. 

 p. 366. t. 25. Leaves like those of S. salicifblia. Flowers 

 white. Leaves deeply serrated only at the apex. 



Lanceolate-]eaved Spiraea. Shrub 2 to 4 feet. 



13 S. CA NA (Waldst. et Kit. pi. hung. 3. p. 252. t. 227.) 

 leaves ovate, acute, quite entire, or a little toothed, clothed with 

 hoary villi ; corymbs somewhat spicate, lateral, pedunculate, few- 

 flowered, loose ; sepals spreading ; styles thick ; carpels di- 

 verging, and rather villous. tj . H. Native of Croatia on 

 high rocks. Cambess. 1. c. 1. p. 364. Leaves about the size 

 of those of Salix repens, var. argentea. Flowers white. 



Hoary Spiraea. Fl. June, July. Clt. 1825. Sh. 1 to 2ft. 



14 S. vAcciNiFOHA (D. Don, prod. fl. nep. p. 227.) leaves 

 elliptic, acute, glabrous, glaucous beneath, serrated at the apex ; 

 branches hairy ; cymes terminal, few-flowered, tomentose. T? . H. 

 Native of Nipaul. Lodd. bot. cab. 1403. Shrub small, erect. 

 Flowers white. 



W hortle-berry-leaved Spiraea. Fl. July, Aug. Clt. 1820. 

 Shrub 2 feet. 



15 S. INCISA (Thunb. fl. jap. 213.) leaves ovate, deeply 5- 

 parted, serrated, pale and villous beneath ; cymes terminal. 

 Tj . H. Native of Japan. Cambess. 1. c. p. 262. Flowers 

 small, white. 



Cut-leaved Spiraea. Shrub 2 to 3 feet. 



16 S. TRI'LOBA (Lin. mant. 244.) leaves roundish, 3-lobed, 

 crenated, glabrous, glaucous beneath and reticulately veined ; 

 flowers disposed in corymbous umbels ; sepals ascending ; car- 

 pels glabrous. T? . H. Native of the Altaian mountains. Cam- 

 bess. 1. c. p. 361. Wats. dent. brit. 68. Pall. ross. 1. p. 33. 

 t. 1 7. Flowers white. Carpels glabrous. 



Three-lobed-\ea.\eA Spiraea. Fl. May. Clt. 1801. Sh. 2 to 4 ft. 



17 S. ALPI NA (Pall. fl. ross. 1. p. 35. t. 20.) leaves lanceo- 

 late, sessile, serrulated, glabrous, with the middle nerve pinnate ; 

 corymbs terminal, pedunculate, nearly leafless ; sepals ascend- 

 ing, tj . H. Native on the alps of Siberia, in woods. Flowers 

 white. 



Alpine Spiraea. Fl. June. Clt. 1806. Shrub 4 to 6 feet. 



18 S. THALICTROIDES (Pall. fl. ross. 1. pp. 34. and 78. t. 18.) 

 leaves obovate, obtuse, somewhat 3-lobed ; umbels lateral, ses- 

 sile. Jj . H. Native of Dahuria, on the alps. S. aquilegi- 

 f olia, Pall. itin. 3. append. 734. no. 94. t. P. f. 3. Leaves glau- 

 cous beneath, finely 3-nerved. Flowers white. 



Meadow-rue-like Spiraea. Fl. May, June. Clt. 1816. Sh. 

 2 to 3 feet. 



19 S. AKGE'NTEA (Mutis, in Lin. fil. suppl. 261.) plant clothed 

 with silky silvery down ; leaves crowded, obovate, or oblong, 

 serrated towards the apex, fan-nerved ; racemes axillary and 

 terminal, panicled ; ovaries silky, biovulate. >? . S. Native 



