chap. cm. salica v ce;e. sa^lix. 1633 



App. iii. Koch's Arrangement of the Species ofSdlix indigenous 

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

 references to the pages in this work, where each species is de- 

 scribed. (See p. H87.) 



ANALYSIS OF THE GROUPS. 



Catkins sessile on the points of the branchlets. Leaves below the cat- 7 .- Chrysa'nth^- 



kins, proceeding from the sides of the hranchlets - 3 



Catkins originating in terminal buds, seated on leafy peduncles, having } GlaciaYes 



new buds. Peduncles permanent, and containing the hranchlets - 3 

 Terminal bud, and generally several morenext the point of thebranch- 

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

 Scales of the catkins of one colour, yellowish green; falling off ? ; Fn»'riii?« 



before the fruit is ripe -3 IL ' 



Scales of the catkins of one colour, yellowish green, permanent - ii. ^mygda'linjE. 

 Scales of the catkins discoloured at the point. 



Anthers, after flowering, black iv. PtiRPiAtE-flE. 



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 1 pre/E. 



Low shrubs, with a creeping procumbent stem - - vii. Arge'nte^e. 

 Capsules sessile, or with very short stalks. 



Catkins sessile. Leaves cuspidate, acuminate, serrated - iii. PR[riNo v siB. 

 Catkins sessile. Leaves entire, or very slightly toothed - v. Vimina v les. 

 Catkins stalked. Stalk leafy ------ ix. Fri'uiDjE. 



Group i. Frdgilcs. 

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

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



1. S. pentandra L. Syn. : S. polvandra Schrank Baier. Fl. ; S. tetrandra Willd. Enum. Suppl. ; 



S. hermaphroditica Lin. Sp. PL ; No. lfi. in p. 1503. 



2. S. cuspidhta Sqhultz. Syn. : S. Meyeriana Willd. Baum. ; S. tinctbria Smith in Rees's Cyclo. ; S. 



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

 No. 17. in p. 1504. 



3. S. fragilis L. Syn. : S. deefpiens Hoffm. Sal., Eng. Bot. ; S. fragilis Smith in Rees's Cyclo. ; S. 



Wargiana Lej. Fl. d. Spa. ; S. fragilis "Wargiciwo Lej. Revue j No. 22. in p. 1516., and No. 

 20. in p. 1515. 



4. S. Russelliwa Smith. Syn. : S. pendula Ser. Sal. Helv. ; S. viridis Fries Nov. ; S. rubens Schrank 



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



5. S. alba L. Syn. : S. ca?rulea Eng.Bot. ; S. vitelllna Lin. Sp. PL ; No. 26. in p. 1522. ; and No. 27. 



in p. 1528. 



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



1. S. occidentals Bosc ; p. 1530. 



2. S. nigra Muhl. Nov. Act. Soc. n. s. Bcr. ; 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. 1530. 



5. S. Humboldti<2raa Willd. ; No. 29. in p. 1529. 



Group ii. Kmygddlince. 

 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. amygdalina L. Syn. : S. triandra Lin. Sp. PL, Willd. Sp. PL ; S. Villarsmwa 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. 1500. 



7. S. undulata Ehrh. Syn. : S. lanceolata Smith Eng. Bot. ; S. No. 37. and 38., Trevir. Obs. Bot. ; 



No. 10. in p. 1496. 



8. S. Aippophaefblia Thuil. Syn. : S. undulata 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. Miihlenbergmrta Willd. Sp. PI. ; S tristis Muhl. 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. PL ; S sericea Muhl. 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 Muhl. Nov. Act. Soc. Berol., Willd. Sp. PL ; No. 47. in p. 1534. 



Group iii. Pruinosce. 

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

 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. acutifblia Willd. Syn. : S. aiolacea Ander. Rep., Smith in Rees's Cyclo. ; S. caspica Hort. ; 



No. 7. in p. 1494. 

 10. S. rfaphnbides Villars. Syn. : S. pra^cox Hoppe in Sturm D. FL, Willd. Sp. PI. ; S. bigemmis 

 Hoffm. Fl. Germ., Hist. Sal. ; S. cinerea Smith Fl. Br., Willd Sp. ; S. pomeranica Willd. 

 Enum. Suppl. ; S. prse'cox gemmata Ser. Sal. exsicc, No. 83. ; No. 8. in p. 1494., and No. 9. in 

 p. 1496. 



Group iv. Purpiirecs. 

 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 tree3, with a glaucous or dull green hue. 



5 o 2 



