. III. SPIR^A. 



519 



of New Granada. H. B. et Kunth, nov. gen. amer. 6. p. 235. 

 t. 562. Flowers white. 



Silvery Spiraea. Shrub 4 to 6 feet. 



20 S. PIKOWIE'NSIS (Besser, enum. pi. pod. p. 46. no. 1428.) 

 leaves lanceolate-cuneate, obtuse, rarely cuspidate, triple-nerved, 

 unequally serrated at the apex ; corymbs pedunculate. ^ . H. 

 Native of Podolia, about Pikow. Flowers white. 



Pikow Spiraea. Fl. June, July. Clt. 1827. Sh. 3 to 4 feet. 



21 S. HYPERICIFOLIA (Lin. spec. 701.) leaves obovate, 3-4- 

 nerved, quite entire, glabrous ; corymbs sessile ; pedicels gla- 

 brous; sepals ascending. ?? . H. Native of Canada. S. hy- 

 pericifolia, var. /3, Plukenetiana, Ser. in D. C. prod. 2. p. 

 543. Pluk. phyt. t. 218. f. 5. Leaves full of dots. Flowers 

 white. 



St. John' s-wort-leaved Spiraea. Fl. June, July. Clt. 1640. 

 Shrub 4 to 6 feet. 



22 S. ACUTIFOLIA (Willd. enum. p. 540.) leaves ovate-cu- 

 neated, acute, quite entire, rarely a little toothed, puberulous ; 

 corymbs sessile. J? . H. Native of Siberia. S. Sibirica, Hort. 

 par. ex Cambess. 1. c. p. 356. S. hypericifolia, var. S, acuta, 

 Ser. in D. C. prod. 2. p. 543. S. ambigua, Pall. Flowers white. 



Acute-leaved Spiraea. Fl. May, Ju. Clt. 1817. Sh. 3 to 4 ft. 



23 S. CRENA'TA (Lin. spec. 701.) leaves obovate, rather pu- 

 bescent, crenulated at the apex ; corymbs stalked ; pedicels 

 puberulous. Tj . H. Native of Spain, Hungary, and other 

 parts of Europe. S. obovata, Walds. et Kit. in Willd. 

 enum. p. 541. Cambess. 1. c. p. 359. Barr. icon. rar. no. 

 1376. t. 564. S. hypericif61ia y, D. C. fl. fr. 5. p. 645. S. 

 hypericifolia, var. S, crenata, Ser. in D. C. prod. 2. p. 543. 

 Led. fl. ross. alt. ill. t. 428. S. hypericifolia var. a Uralensis, 

 Ser. in D. C. prod. 2. p. 215. Flowers small, white. 



Crenate-leaved Spiraea. Fl. May, June. Clt. 1739. Shrub 

 4 to 6 feet. 



24 S. SAVRA'NICA (Bess, in litt.) plant clothed with pubes- 

 cence in every part ; leaves obovate, entire, elongated ; corymbs 

 terminal, dense. Jj S. Native of Siberia, about Barnaoul, 

 and of Podolia. S. crenata, Pall. fl. ross. 1. p. 35. t. 19. S. 

 hypericifolia, var. f, Savranica, Ser. in D. C. prod. 2. p. 543. 

 S. hypericifolia var. ft longifolia, Led. fl. ross. alt. ill. t. 429. 

 Flowers small, white. 



Var. ft, Besseriana (.Ser.) smoothish ; leaves usually entire, 

 glabrous ? corymbs terminal, loose. ^ . H. Native of Podolia 

 and Caucasus. Lodd. bot. cab. 1252. S. crenata, Besser, in litt. 



Savranic Spiraea. Fl. May, June. Clt. 1819. Sh. 3 to 6 ft. 



25 S. THUNBE'RGII (Blum, bijdr. 1115.) leaves linear-lan- 

 ceolate, acuminated at both ends, smoothish, sharply serrated 

 towards the apex ; fascicles of flowers sessile, lateral, racemose 

 in consequence of the leaves falling off; calyx glabrous. Tj . G. 

 Native of Java and Japan. Thunb. fl. jap. p. 210. Flowers 

 white. 



Thunberg's Spiraea. Shrub 3 to 6 feet. 



26 S. CANE'SCENS (D. Don, fl. nep. p. 227.) leaves oval or 

 obovate, obtuse, stalked, quite entire, villous ; corymbs crowded, 

 and are as well as the branches tomentose. T? G. Native of 

 Sirinagur. S. cuneata, Wall. Shrub erect, branched, canes- 

 cent, with the habit of S. hypericifolia. Flowers apparently 

 red. Carpels 5, connivent. 



Canescent Spiraea. Shrub. 



27 S. CEANOTHIFOLIA (Horn. hort. hafn. 2. p. 466.) leaves 

 ovate, rounded at the base, sharply and unequally serrated from 

 the middle to the apex ; corymbs terminal, on short peduncles. 



fj . H. Native country unknown. Flowers white. 



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

 3 to 4 feet. 



28 S. CORYMBOSA (Rafin. prec. som. 36. and Desv. journ. 

 bot. 1814. p. 168.) leaves oval-oblong, unequally serrated, gla- 



1 



brous, discoloured ; corymbs terminal ; flowers trigynous. Ij . 



H. Native of Virginia. Lodd. bot. cab. 671. Flowers white. 



Corymbous Spiraea. Fl. June, Jul. Clt. 1819. Sh. 2 to 3 ft. 



SECT. III. SPIRA'RIA (an alteration of the generic name). 

 Ser. in D. C. prod. 2. p. 544. Spirae'a species, Cambess. mon. 

 spir. in ann. sc. nat. 1. p. 354. Ovaries free (f. C5. d.}. Torus 

 free at the base, but lining the bottom of the calycine tube. 

 Carpels not inflated. Shrubs with hermaphrodite, paniculate 

 flowers, and serrated exstipulate leaves. 



29 S. BETULIFOLIA (Pall. fl. ross. 1. p. 33. t. 16.) leaves 

 broadly oval, serrated, on short petioles, glabrous ; flowers dis- 

 posed in fastigiate panicles ; carpels 5, erect, glabrous. Ij . S. 

 Native of Siberia and North-west America, and in valleys of the 

 Rocky Mountains. Camb. 1. c. p. 368. t. 27. Flowers pink. 

 Wats. dend. brit. 67. Perhaps the same as S. cratcegifblia of 

 Link. enum. 2. p. 40. ? 



Birch-leaved Spiraea. Fl. Ju. Jul. Clt. 1812. Sh. 2 to 4 ft. 



30 S. LVIGA V TA (Lin. mant. p. 244.) leaves obovate-oblong, 

 smooth, glaucous, quite entire, sessile, mucronate ; branches of 

 panicles cylindrical ; bracteas linear, hardly the length of the 

 calyx ; calycine segments triangular, ascending. J? . H. Na- 

 tive of Siberia. Camb. 1. c. p. 369. S. Altaiensis, Laxm. nov. 

 act. petrop. 15. p. 555. t. 29. f. 2. S. Altaica, Pall. fl. ross. 1. 

 p. 272. t. 23. Flowers white, disposed in thyrsoid racemose 

 panicles. The leaves being gently astringent, may serve as a 

 substitute for tea. 



Smooth-leaved Spiraea. Fl. May, June. Clt. 1774. Shrub 

 4 to 6 feet. 



31 S. MAGELIA'NICA (Poir. diet. -7. p. 350.) leaves petiolate, 

 lanceolate, unequally serrated, nerved ; racemes terminal, almost 

 simple. Jj . H. Native of the Straits of Magellan. Flowers 

 white. 



Magellan Spiraea. Shrub. 



32 S. JAPONICA (Siebold, ex Blum, bijdr. 1114.) leaves 

 rhomboid-lanceolate, acutish, deeply serrated from the middle 

 to the apex, smooth, grey beneath ; corymbs terminal, simple, 

 and are as well as the calyxes glabrous. Jj . G. Native of 

 Japan. Said to be like S. Magellanica. 



Japan Spiraea. Shrub. 



33 S. SALICIFOLIA (Lin. spec. 

 700.) stem and peduncles gla- 

 brous ; leaves lanceolate, gla- 

 brous, somewhat doubly serrated ; 

 racemes rather spicate ; calycine 

 lobes triangular, spreading ; car- 

 pels 5, glabrous. T? . H. Native 

 of Siberia, Tartary, Bohemia, and 

 Silesia. It is to be found in Eng- 

 land, although perhaps not truly 

 indigenous ; in many parts of 

 Westmoreland ; in many places 

 on the borders of Winandermere, 

 and also between Poolbridge and 

 Colthouse, near Hakshead, Cum- 

 berland, and in a wood at Hafod, 

 Cardiganshire. Smith, engl. bot. 



1468. Gmel. fl. sib. 3. t. 49. Pall. fl. ross. 1. p. 36. t. 21. 

 Duham. arb. 2. t. 75. Flowers red or rose-coloured, disposed 

 in thyrsoid racemes. 



Willow-leaved Spiraea. Fl. Ju. Aug. Brit. Sh. 4 to 6 ft. 



34 S. ALPE'STRIS (Pall. fl. ross. 1. p. 36, t. 22.) leaves lan- 

 ceolate, acute, deeply serrated almost to the base, canescent ; 

 racemes loose, thyrsoid. J? . H. Native of Siberia, on rocks 

 about the rivers Oby and Yenessee. Amman, ruth. 188. t. 28. 

 Flowers pale red. 



FIG. 65. 



