78 JOURNAL OF THE ARNOLD ARBORETUM (vol. vi 



Inflorescence and petioles generally not conspicuously glandular; 

 leaves thin or thick. 

 Fruit blue or black (stramineous in var. of C. brachyacantha); 

 leaves relatively small, thick and glossy above, those of flowering 



finely 



Brachyacanthae 



Fruit yellow, orange or red; leaves not as above. 

 Fruit usually 10-16 mm. diameter; leaves firm or subcoriaceous, 



mainly of ovoid or elliptic type XII. Rotundifoliae. 



Fruit usually 4-10 mm. diameter; leaves thin, mostly of oblong 

 or oval type. 



Leaves very variable, irregularly lobed or merely serrate; 



corymbs many (10-20)-flowered; fruit usually 5-10 mm. 



diameter III. Virides. 



Leaves less variable, with shallow round 



4-10-flowered 



corymbs 



IV. Pulcherrimae. 



Leaves of flowering branches usually not conspicuously narrowed, or at 

 least not attenuate at base, mostly of broadly ovate type, petioles 

 slender. 



Fruit becoming soft and succulent, bright red or scarlet, usually less than 

 15 mm. diameter. Corymbs usually glabrous; leaves thin, glabrous 



beneath, often finely villous-scabrate above VI. Tenuifoliae. 



Fruit usually hard and inedible, 10-20 mm. diameter. 



Fruiting calyx with distinct neck; leaves usually glabrous above; 



fruit often angular and pruinose VIII. Pruinosae. 



Fruiting calyx sessile; young leaves usually villous-scabrate above; 



fruit seldom angular or pruinose VII. Silvicolae. 



Fruit firm but becoming edible, larger (15-25 mm. diameter); leaves 

 firm, mostly of ovate or deltoid-cordate type. 

 Mature leaves usually glabrous; fruit usually oblong or obovoid; 



fruiting calyx small IX. Coccineae. 



Mature leaves usually pubescent, firm, with thick petioles and veins; 



stamens 10-20; nutlets 3-5 X. Molles. 



Mature leaves usually glabrous; fruit subglobose, calyx much en- 

 larged; stamens 20; nutlets 5 XI. Dilatatae. 



Fruit 4-6 mm. diameter, bright scarlet, becoming soft and succulent; flowers 

 small, many in a corymb; nutlets very small, not rounded or ridged on back. 



XIII. Microcarpae. 



Nutlets pitted or deeply concave on ventral surfaces. 



Fruit dark crimson or chestnut, becoming black when fully ripe; nutlets 5. 



XX. Douglasianae. 



Fruit orange or scarlet. 



Nutlets 2-3, deeply pitted or concave; flowers in usually many-flowered 

 clusters at ends of leafy branchlets; fruit usually less than 10 mm. diameter. 



XXII. Macracanthae. 



Nutlets 3-5, with shallow pits; flower usually fewer in cluster, on short termi- 

 nal or lateral branchlets; fruit usually more than 10 mm. diameter. 



XXI. Anomalae. 



SYNOPTICAL TABLES OF SPECIES ARRANGED BY GROUPS AND 



FLORAL AND FOLIAGE CHARACTERS 



I. Crus-galli 



A. Anthers red, rose, pink or purple (AA and AAA see p. 82) 

 B. Stamens about 10 (5-15) (BB see p. 81) 

 C. Corymbs glabrous (CC see p. 80) 



D. Leaves mostly spatulate, obovate or lance-elliptic (on vigorous shoots 

 broader but distinctly longer than broad) 



