336. 
337. 
338. 
339. 
340. 
341. 
342. 
343. 
344. 
345. 
346. 
347. 
348. 
349. 
350. 
351. 
Krys—LEAVES ALTERNATE XXxili 
Buds with red fleshy scales. p. 111. Crataegus. 
Bud-seales not fleshy. 337. 
Buds woolly or gummy: no catkins. p. 106. Sorbus. 
Buds not woolly or gummy. p. 14. Leitneria. 
Stipule-scars rather elongated. 340. 
Stipule-bases present, or their scars short. 339. 
Stipule-scars or bases on a leaf-cushion. p.127. Prunus. 
Stipule-scars not on a leaf-cushion. 341. 
Pith round: buds often superposed. p. 92. Neillia. 
Pith 3-sided: buds not superposed. p. 23. Betula. 
Leaf-scars somewhat raised. p. 242. Stachyurus. 
Leaf-scars low. 342. 
Buds nearly globose. p. 150. Amorpha. 
Buds ovoid. 343. 
Bundle-traces confluent or twigs hairy. p. 220. Rhamnus. 
Bundle-traces separate or twigs glabrous. p.127. Prunus. 
Stipule-scars nearly or quite encircling the twig. 345. 
Stipule-scars not nearly encircling the twig. 349. 
Buds pointed and spike-like. p. 27. Fagus. 
Buds not sharp and hard. 346. 
Sap milky. p. 37. Ficus. 
Sap not milky. 347. 
Very rusty-hairy. p. 64. Michelia. 
Without long rusty hairs. 348. 
Buds terete. p. 63. Magnolia. 
Buds flattened. p. 62. Liriodendron. 
Leaf-scar nearly encircling the twig after the 
petiole has fallen. p. 121. Purshia. 
Leaf-scar not at all nearly encircling the twig. 350. 
Bundle-traces 3: pith chambered. p. 19. Pterocarya. 
Without this combination of characters. 351. 
Bundle-traces many, mostly in 3 groups: leaf-scars 
lobed. 352. 
Without this combination of characters. 358. 
