xxxvi KEYS LEAVES ALTERNATE 



385. Bud-scales numerous. 386. 



Exposed bud-scales two or three. 387. 



386. Leaf-scars low: no stipules. p. 163. Orixa. 

 Scars raised: stipules persistent. p. 117. Potentilla. 



387. Buds triangular-ovoid with 2 scales. p. 303. Diospyros. 

 Buds subfusiform, sometimes multiple, p. 233. Stewartia. 



388. Pith with firmer plates at intervals, p. 200. Tripterygium. 

 Pith without firmer plates. 389. 



389. Leaf-base for a time persistent, torn at top. 390. 

 Leaf-scar clean-cut even if on a raised base. 391. 



390. Twigs few-ribbed, gray-green. p. 197. Glossopetalon. 

 Twigs finely corrugated: rush-like. p. 145. Spartium. 

 Twigs neither green nor sculptured. p. 306. Styrax. 



391. Bundle-trace frequently broken into three. 392. 

 Bundle-trace undivided, or else of many fragments. 396. 



392. Twigs aromatic, green, mucilaginous. p. 71. Sassafras. 

 Twigs neither aromatic nor- green. 393. 



393. Buds solitary. 394. 

 Buds superposed. 395. 



394. Leaf-scars raised, with stipules. p. 148. Laburnum. 

 Leaf-scars without conspicuous stipules, p. 220. Rhamnus. 



395. Buds subglobose. p. 191. Ilex. 

 Upper buds oblong. p. 306. Styrax. 



396. Leaf-scars fringed at top, shield-shaped. 397. 

 Leaf-scars not fringed. 398. 



397. Evergreen: leaves thick and not veiny, p. 189. Cliftonia. 

 Deciduous, or leaves very veiny if present, p. 190. Cyrilla. 



398. Aromatic: evergreen. 399. 



Not both aromatic and evergreen. 403. 



399. Leaves compound: resin flowing freely, p. 184. Pistaeia. 

 Leave^ simple. 400. 



400. Leaves with several nerves. p. 69. Cinnamomum. 

 Leaves with only 1 principal vein. 401. 



401. Leaves sickle-shaped: buds naked. p. 257. Eucalyptus. 

 Leaves lanceolate: buds with scales. 402. 



