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. Pistacia. 

 Leaves 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. 



