ROSACEA. (rose family.) 



17. CRAT.'EGUS, L. Hawthorn. Za>rur. 



311 



Calyx-lobes5, short. Petals 

 5. Ovary 1-2, rarely 3-5 celled, 

 cells 2-ovuled, styles free. 

 Fruit pome-like, with umbili- 

 cate disk, and minute, marces- 

 cent lobes, and 1-2, rarely 5, 

 bony, 1 -seeded pyrenes — Shrubs 

 or small trees, generally thorny. 



* Styles and pyrenes 4-5, rarely 

 'by abortion 3. 



Flower of Crataegus. 



1. C. Orieiitali§, Pall. 5 I^eaves chartaceous, grey-pubescent 

 on both sides, short-cuneate at base, ovate in outline, pinnately 3-5- 

 parted into incised-serrate or lobed segments. Corymbs dense, white- 

 woolly; fruit large, hnck- colored to Uackish-purple — Spring — Thickets; 

 Crilead and Moab. 



* * Styles and py7'enes 1-2, rarely 3. 



t Fruit as large as a cherry or larger. 



2. C Azarolus, L. 5 Leaves chartaceous, piibescent, obovate 

 in outline, cuneate at base, undivided or 3-5-fid, with lobes entire or 

 coarsely 2-3 dentate at apex. Corymbs branching, woolly; fruit globu- 

 lar, red or yellow — April — Hillsides and mountains ; common through- 

 out. 



1 1 Fruit a little larger than a pea. 



3. C Sinaica, Boiss. 5 Leaves chartaceous, glabrous, ovate in 

 outline, cuneate at base, some undivided, others 3-5-lobed or parted 

 into obtuse segments, crenate or dentate at apex. Corymbs simple^ fev)- 

 Jlowered, glabrous ; fruit ovate-elliptical, contracted at neck — - Spring 



— Sinai. 



5, C. monogyna, Willd. 5 ^ *^ "^^ Leaves puberulent or 

 glabrous, cuneate at base, obovate in outline, deeply 3-7-fid, acutely 

 incised or serrate, sometimes almost undivided. Corymbs loosely 

 puberulent or glabrous ; style 1 ; fruit globular, with 1 pyrene — May 



— Lower and middle mountain regions, and coast ; common through- 

 out. 



18. COTO^EASTER, Med. Cotoneaster. 



Calyx-lobes 5, short, persistent. Petals 5. Ovary 2-5-celled, cells 

 2-ovuled. Styles 2-5. Fruit small, pome-like, with 2-5, bony, 1 -seeded 

 pyrenes, adherent to the fleshy calyx, except at apex — Shrubs with 

 white or pinkish flowers. 



* Thorny. Floioers pentagynous in many-Jlowered, puberulent cymes. 



1. C. pyracanttaa, L. 5 Leaves sub-coriaceous, persistent, 

 short-petioled, oblong-obovate to oblong, .02 to .03 long, .01 to .015 broad, 

 crenate, glabrous, shining above, pale beneath. Fruit as large as a pea, 

 scarlet — May and June — Hedges ; Amanus, and northward. 



