CHAP. cm. saiaca'^cem. .va^lix. 1633 



App. iii. Koch's Arrangement of the Species qfSdlix mdigenoiis 

 to Europe ; including, also, some extra-European Species, ivith 

 reforenccs to the pages i?i this work, where eacli species is de- 

 scribed. (See p. 1487.) 



ANALYSIS OF THE GROUPS. 



Catkins sessile on the points of the branchlets. Leaves below the cat- 7 ... p,,„,. ^vxui- 

 kins, proceeding from the sides of the branchlets - - . . j ^"'- <-"»"»■* .mh-h. 

 Catkins originating in terminal buds, seated on leafy peduncles, having \ Glacia'ifs 



new buds. Peduncles permanent, and containing the branchlets - J " <-IA les. 



Terminal bud, and generally several more next the point of the branch- 

 lets, producing leaves; the intermediate lateral ones, catkins. 

 Scales of the catkins of one colour, yellowish green; falling off' 7 : v^timma 



before the fruit is ripe - J '• * «* t-i^ES. 



Scales of the catkins of one colour, yellowish green, permanent - ii. /iMYGDA'LlN/F.. 

 Scales of the catkins discoloured at the point. 



Anthers, after flowering, black ....... iv. Purpu'res. 



Anthers, after flowering, yellow or brown. 



Capsules on long stalks, which are at least twice as long as 

 the gland. 

 Tall, erect, or arborescent shrubs • - - - - vi. Ca'prEjE. 



Low shrubs, with a creeping procumbent stem - - vii. ARGE'NTEiE. 

 Capsules sessile, or with very short stalks. 



Catkins sessile. Leaves cuspidate, acuminate, serrated - iii. Pruino^s.^. 

 Catkins sessile. Leaves entire, or very slightly toothed - v. Vimina^1.es. 

 Catkins stalked. Stalk leafy ------ ix. FRi'GiD.aE. 



Group i. Frugilcs. 

 Catkins lateral ; the fertile ones on a leafy peduncle. Scales of tlie catkin of one colour, yellowish 

 green, falling off before the fruit is ripe. Large trees. 



1. S. pentandra L. Syn. : S. polvandra Sckrank Baicr. Fl. ; S. tetrdndra Willd. Enum. Suppl. ; 



S. hermaphroditica Lin. Sp. PI. ; No. Ifi. in p. 1503. 



2. S. cuspidkta Sq/iziUz. Syn. : .S'. MeyerinraaWilld. Baum. ; S. tinctbria Smith in Rees's Cyclo. ; S. 



pentandra /3 Lin. Fl. Suec. ; S. he.\andra Ehrh. Arb. ; S. Ehrhartiana Smith in Rees's Cycl. ; 

 No. 17. in p. 1504. 

 5. S. fragilis L. Syn. : S. decfpiens Hoffm. Sal.,Eng. Bot. ; S. fragilis Smith in Bees's Cyclo. ; S. 

 Warg;d/ia Lej. Fl. d. Spa. ; S. fragilis Wargj<m« Lej. Revue ; No. 22. in p. 1516., and No. 

 20. in p. 1515. 



4. S. Russellma Smith. Syn. : S. pendula Scr. Sal. Ilelv. ; S. viridis Fries Nov. ; S. rfibens Schrank 



Baier. Fl. ; No. 24. in p. 1517. 



5. S. &lba L. Syn. : S. cserCilea Eng.Bot. ; S. vitellina Lin. Sp. PI. ; Ko. 26. in p. 1522. : and No. 27. 



in p. 1528. 



To this group belong, also, the following extra-European species : — 



1. 5. occidentalis Bosc ; p. 1530. 



2. S. nigra iliihl. Nov. Act. Soc. n. s. Ber. ; S. caroliniana Michx. Amer. ; No. 28. in p. 1529. 



3. S. babylonica L. ; S. propendens Ser. Sal. Helv. ; No. 19. in p. 1507. 



4. S. octandra Sieb. ; p. 1.5.jO. 



5. S. Humbokltwwd Willd. ; No. 29. in p. 1529. 



Group ii. KmygdalincE. 

 Catkins lateral, the fertile ones on a leafy peduncle. Scales of the catkins of one colour, yel. 

 lowish green, permanent. Leaves long, serrated, smooth. Tall shrubs, with pliable shoots. 



6. S. nmygdalina L. Svn. : S. triandra Lin. Sp. PI., Willd. Sp. PI. ; S. Villars?a«n Willd. Sp. PI. ; 



S. Hoppeana Willd. Sp. ; No. 14. in p. 1500. ; No. 12. in p. 1498. ; No. 15. in p. 1502. ; and 

 No. 13. in p. 1,500. 



7. S. undulita Ehrh. Syn. : S. lanceol^ta Smith Eng. Bot. ; S. No. 37. and 38., Trevir. Obs Bot. ; 



No. 10. in p. 1496. 



8. S. Aippophaefblia Thuil. Syn. : S. undul^ta Trev. Obs. Bot., p. 17., Koch in Regensb. Bot. Zeit., 



1820, p. 311. ; No. 11. in p.' 1498. 

 Between this and the next group must be placed the three following North American species : — 



1. S, Miihlenbergwn« Willd. Sp. PI. ; .S tristis Miihl. Nov. Act. Soc. n. s. Berol. ; S. incana 



Michx.; Fl. Bor. Amer. ; No 45. and No. 46. in p. 1534. 



2. S. grisea Willd. Sp. Pi. ; S sericea Miihl. Nov. Act. Soc. Berol, not of Villars, is the 



S. petiolaris Smith Fl. Br. ; No. 42. and No. 43. in p. 1533. 



3. S. cordata Miihl. Nov. Act. Soc. Berol., Willd. Sp. PI. ; No. 47. in p. 1534. 



Group iii. PndndscB. 

 Catkins lateral, the fertile ones also sessile. Capsules sessile. Stamens 2, distinct ; anthers, afler 

 shedding their pollen remaining yellow. Scales of the catkins discoloured at the point. Leaves 

 cuspidate acuminate, serrated, becoming smooth. Inner bark yellow in the summer. Tall shrubs 

 or trees, of a bright green hue. 



9. S. acutifolia Willd. Syn. : S. wiolacea Ander. Rep., Smith in Rees's Cyclo. ; S. c&spica Hort. ; 



No. 7. in p. 1494. 

 10. S. rfaphnoides Villars. Syn. : S. pras'cox Hoppc in Sturm D. Fl., Willd. Sp. PI. ; S. bigemmis 

 Hoffm. Fl. Germ., Hist. Sal. ; S. cinerea Smith Fl. Br., Willd Sp. ; S. pomer^nica Willd. 

 Enum. Suppl. ; A prje'cox gemmita Ser. Sal. exsicc. No. 83. ; No. 8. in p. 1494., and No. 9. in 

 p. 1496. 



Group iv. PurpitrecB. 

 Catkins lateral, sessile ; their scales dark or purple at the extremity. Stamens 2, united as far as 

 the middle, or the point ; anthers purple, becoming black after flowering. Inner bark yellow in 

 the summer. Tall shrubs or trees, with a glaucous or dull green hue. 



5 o 2 



