CHAP. cm. SALICA'CEJE. S-A V 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. 1487.) 



ANALYSIS OF THE GROUPS. 



Catkins sessile on the points of the branchlets. Leaves below the cat- 7 ;:; runvc*/vTn; 



kins, proceeding from the sides of the branchlets - - - - j v 

 Catkins originating in terminal buds, seated on leafy peduncles, having > GLACIA'LES 



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

 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 . p nA / IT1?u 



before the fruit is ripe - j '' * 



Scales of the catkins of one colour, yellowish green, permanent - i 

 Scales of the catkins discoloured at the point. 



Anthers, after flowering, black .---... i 

 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'PRE^E. 



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

 Capsules sessile, or with very short stalks. 



Catkins sessile. Leaves cuspidate, acuminate, serrated - iii. PRUINO V S. 

 Catkins sessile. Leaves entire, or very slightly toothed - v. VIMINA V LES. 

 Catkins stalked. Stalk leafy ix. FRI'UIDA. 



Group i. Frdgiles. 



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. PI. ; No. Ifi. in p. 1503. 



2. S. cuspidata Scjiultz. Syn. : S. Meyenano Willd. Baum. ; S. tinctbria Smith in Reefs Cyclo. ; 5. 



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

 No. 17. in p. 1504. 



5. S. fragilis L. Syn. : S. decfpiens Hqffm. Sal., Eng. Sot. ; S. fragilis Smith in Rees's Cyclo. ; S. 

 \\'argiana Lej. Fl. d. Spa. ; S. fragilis Wargawa Lej. Revue ; No. 22. in p. 1516., and No. 

 20. in p. 1515. 



4. S. RusselUwo Smith. Syn. : S. pendula Scr. 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. vitellina Lin. Sp. PI. ; Wo. 26. in p. 1522. j and No. 27. 



in p. 1528. 



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



1. S. occidental Base ; p. 1530. 



2. S. nigra Mii/il. 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. 1530. 



5. S. Humboldt/^na Willd. ; No. 29. in p. 1529. 



Group ii. P^niygdalmcE. 



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. Pi., Willd. Sp. PI. ; S. Villarszdna Willd. Sp. PL ; 



S. Hoppe<Ja 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 Ens. Bot. ; S. No. 37. and 38., Trevir. Obs. Bot. ; 



No. 10. in p. 1496. 



8. S. Aippophaefblia Thvil. Syn. : S. undulata Trev. Obs. Bot., p. 17., Koch in Rcgensb. 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. Miihlenbergjana Willd. Sp. PL ; S tristis MUM. 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 M'uhl. Nov. Act. Soc. BcroL, 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. PI. ; 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. acutifolia Willd. Syn. : S. t/iolacea Ander. Rep., Smith in Rees's Cyclo. ; S. caspica Hort. : 



No. 7. in p. 1494. 



10. S. rfaphndides VWars. Syn. : S. pre'cox Hoppe 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. ; S. prse'cox gemmata Ser. Sal. exsicc., No. 83. ; No. 8. in p. 1494., and No. 9. in 

 p. 1496. 



Group iv. Purpure<s. 



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 



