262 



CORNACEAE. 



Cornus. Dogwood. Cornel. 

 (Family Cornaceae). 



Shrubs or occasionally small 

 trees: deciduous. Twigs moder- 

 ate or rather slender, often bright- 

 colored, round or more or less 6- 

 sided: pith moderate, round or 

 more or less compressed or an- 

 gled, white and continuous or 

 somewhat colored and spongy. 

 Buds solitary or exceptionally su- 

 perposed, stalked, characteristi- 

 cally oblong, with a pair of near- 

 ly or quite valvate scales consist- 

 ing of more or less developed 

 leaves or less commonly of peti- 

 oles with blade-rudiments at top. 

 Leaf-scars opposite except in one 

 species, crescent- or U-shaped, com- 

 monly raised during the first win- 

 ter on petiole-bases that are later 

 deciduous at the level of the twig: 

 bundle-traces 3: stipule-scars lack- 

 ing, but the leaf-scars meet or are transversely joined. (Cy- 

 noxylon, Svida). 



Winter-character references: Cornus alba. Bosemann, 

 58; Brendel, pi. 3; Schneider, f. 195. C. alternifolia. Blakes- 

 lee & Jarvis, 333, 552; Otis, 206; Schneider, f. 195. C. Amo- 

 mum (C. sericea). Hitchcock (3), 15. G. asperifolia. Hitch- 

 cock (3), 15, (4), 137, f. 75-76. G. circinata. Schneider, f. 194. 

 C. florida. Blakeslee & Jarvis, 329, 552, pi.; Hitchcock (1), 3; 

 Otis, 204. C. ignorata. Shirasawa, 269, pi. 10. C. Kousa. 

 Shirasawa, 272, pi. 10. C. macrophylla. Shirasawa, 283, pi. 

 13. C. mas (C. mascula). Bosemann, 57; Schneider, f. 194; 

 Willkomm, 56, f. 92; Zuccarini, 21, pi. 12. C. officinalis. Shi- 



