xxxiv KEYS LEAVES ALTERNATE 



352. Pith chambered and angular. p. 16. Juglans. 

 Pith continuous. 353. 



353. Evergreen: buds solitary: leaves fern-like, p. 42. Grevillea. 

 Deciduous. 354. 



354. With terminal bud: buds ovoid: pith angled, p. 18. Carya. 

 Without a terminal bud. 355. 



355. Buds half-ellipsoid: leaf-scars raised, p. 209. Koelreuteria. 

 Buds globose. 356. 



356. Buds solitary. 357. 



Buds superposed. p. 208. Sapindus. 



357. Twigs glabrous: lenticels conspicuous. p. 174. Melia. 

 Twigs dingy-tomentulose. p. 210. Ungnadia. 



358. 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. 



359. Leaf-scars large, subelliptical: buds not superposed. 360. 

 Leaf-scars small if they are elliptical. 361. 



360. Tree: twigs green: pith continuous. p. 230. Sterculia. 

 Shrub: twigs buff or gray. p. 222. Ampelopsis. 



361. CAUTION. (See Rhus.). Sap milky or gummy. 362. 

 Sap neither milky nor gummy. 365. 



362. With stipule-scars. 363. 



Without stipule-scars. Sometimes very poisonous. 



p. 187. Rhus. 



363. Pith with thin diaphragms at nodes, p. 36. Broussonetia. 

 Pith without firm nodal diaphragms. 364. 



364. Buds ovoid. p. 34. Moms. 

 Buds depressed-globose. p. 35. Maclura. 



365. Without stipules or stipule-scars. 366. 

 With stipules or stipule-scars. 367. 



366. Small and soft-wooded: twigs stout. p. 50. Paeonia. 

 Large and woody: twigs rather slender, p. 234. Gordonia. 



367. Pith, and usually twigs, grooved. 368. 



Pith nearly or quite round: end-bud lacking. 369. 



368. Bud-scales numerous: end-bud present. p. 29. Quercus. 

 Bud-scales 2 or 3: end-bud often lacking, p. 28. Castanea. 



