XXXiv KEYS—LEAVES ALTERNATE 
352. 
353. 
354. 
355. 
356. 
357. 
358. 
359. 
360. 
361. 
362. 
368. 
Pith chambered and angular. p. 16. Juglans. 
Pith continuous. 353. 
Evergreen: buds solitary: leaves fern-like. p. 42. Grevillea. 
Deciduous. 354. 
With terminal bud: buds ovoid: pith angled. p.18. Carya. 
Without a terminal bud. 355. 
Buds half-ellipsoid: leaf-scars raised. p. 209. Koelreuteria. 
Buds globose. 356. 
Buds solitary. 357. 
Buds superposed. p. 208. Sapindus. 
Twigs glabrous: lenticels conspicuous. p. 174. Melia. 
Twigs dingy-tomentulose. p. 210. Ungnadia. 
Bundle-traces many in a long series, or scattered. 359. 
Bundle-trace 1, not ring-like, barely broken 
into 3 or 5 if divided. 370. 
Leaf-scars large, subelliptical: buds not superposed. 360. 
Leaf-scars small if they are elliptical. 361. 
Tree: twigs green: pith continuous. p. 230. Sterculia. 
Shrub: twigs buff or gray. p. 222. Ampelopsis. 
CAUTION. (See Rhus.). Sap milky or gummy. 362, 
Sap neither milky nor gummy. 365. 
With stipule-scars. 363. 
Without stipule-scars. Sometimes very poisonous. 
p. 187. Rhus. 
. Pith with thin diaphragms at nodes. p. 36. Broussonetia. 
Pith without firm nodal diaphragms. 364. 
. Buds ovoid. ; p. 34. Morus. 
Buds depressed-globose. p. 35. Maclura. 
. Without stipules or stipule-scars. 366. 
With stipules or stipule-scars. 367. 
. Small and soft-wooded: twigs stout. p. 50. Paeonia. 
Large and woody: twigs rather slender. p. 234. Gordonia. 
. Pith, and usually twigs, grooved. 368. 
Pith nearly or quite round: end-bud lacking. 369. 
Bud-secales numerous: end-bud present. p. 29. Quercus. . 
Bud-seales 2 or 3: end-bud often lacking. p. 28. Castanea. 
