The Hawthorns 



CCCC. Petioles, leaves and corymbs conspicuously glandu- 

 lar; corymbs few-flowered; fruit ^ to f mch long, 

 flesh hard, dry; branches zizag. 



XIV. Group FLAV/E 



Bark deeply furrowed ; leaves diamond shaped, thick, 

 shining, with short winged petiole; corymbs 

 velvety, with 3 to 6 flowers, stamens 10, an- 

 thers yellow; fruit late, dull orange red, 

 flattened. (C. aprica) haw 



BB. Veins of leaves extending to sinuses as well as to points 

 of lobes; corymbs many-flowered; stamens 20. 

 C. Fruit flattened to oblong, pea size, scarlet; nutlets 

 2 to 5, prominently ridged at back; anthers rose 

 coloured or purple. 



XV. Group MICROCARP/E 



D. Leaves round, deeply 5 to 7 cleft. 



(C. apiijolia) parsley haw 

 DD. Leaves heart shaped. 



(C cordaia) Washington thorn 

 CC. Fruit flattened, ^ to ^ inch long, red, blue or blue- 

 black nutlets 3 to 5, obtuse at ends, slightly ridged 

 at back; leaves dark and lustrous. 



XVI. Group BRACHYACANTH/E 



Leaves lanceolate; thorns stout; fruit bright blue. 



(C. hrachyacaniha) pomette bleue 

 AA. Nutlets grooved in front. 



B. Fruits \ to \ inch long, erect, lustrous, orange or 

 scarlet; nutlets 2 to 3, blunt at ends, ridged on back; 

 leaves downy below. 



XVI I. Group TOMENTOS/E 



C. Fruit pear shaped, translucent, orange red, leaves 

 2 to 5 inches long, grey-green, tomentose below; 

 thorns i^ inches long, slender. 



(C iomentosa) pear haw 

 CC. Fruit, pea-like, crimson, leaves 2 to 3 inches long, 

 dark, lustrous, tapering; thorns 2\ to 4 inches long, 

 curved. (C macracaniha) long-spine haw 



BB. Fruit nearly globular, \ inch long, black; nutlets 5, 

 blunt at ends, faintly ridged on back; stamens 20; 

 leaves leathery. 



XVIII. Group DOUGLASIAN/E 



Leaves variable in form, fruit many in a cluster, 

 lustrous, sweet. (C Douglasii) black haw 



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