MALACEAE 



533 



Stamens 10. 



Stamens more than 10. 



Flowers produced in few-flowered, mostly 5-7-flowered 

 corymbs : pedicels and hypanthium pubescent or gla- 

 brous (densely white-tomentose in no. 78): leaf-blades 

 serrate, dentate or crenate, pubescent or glabrous: 

 branches spreading or ascending or occasionally droop- 

 ing as in the VISENDAE. 

 Leaf-blades sharply serrate and pointed. 

 Leaf-blades serrate or coarsely and irregularly dentate. 

 Leaf-blades crenate. 

 Leaf-blades finely dentate or glandular-dentate, usually 



with several tooth-like lobes. 



Flowers produced in few-flowered, mostly 3-5-flowered 

 corymbs: pedicels and hypanthium tomentose or 

 pubescent (glabrous or nearly so in the ATTRITAE): 

 leaf-blades dentate, crenate or entire, or occasionally 

 serrate as in the SENTAE, either tomentose, pubescent 

 or glabrous : branches mostly drooping. 

 Mature fruit globose, subglobpse or oval. 

 Fruit averaging 1 cm. in diameter or more. 



Leaf-borders glandular, entire, dentate or crenate. 



often with blunt or sharp tooth-like lobes. 

 Inflorescence tomentose or pubescent. 



Mature leaves densely tomentose beneath. 

 Mature leaves less tomentose, sometimes 



merely pubescent or glabrous. 

 Leaf-blades entire or nearly so. 

 Leaf-blades toothed, often lobed. 

 Inflorescence glabrous or with a few weak hairs. 

 Leaf-borders serrate or serrate-dentate and incisely 



lobed. 



Fruit averaging less than 1 cm. in diameter. 

 Mature fruit pyriform. 



Fruits 1.5-2 cm. long, over 1 cm. thick. 

 Fruits smaller. 



Flowers solitary, 2 or 3 together (usually more in no. 132): 

 pedicels and hypanthium glabrous or pubescent: 

 leaves small; blades cuneateorspatulate, or sometimes 

 with abruptly contracted bases : spines usually numer- 

 ous : sepals narrow. 



i. Corymbs with a single flower each, or 2 or 3 flowers, or occa- 

 sionally more : sepals long and usually conspicuously in- 

 cised : fruit globose or pyriform, at maturity red, yellow or 

 greenish, the flesh firm : leaves relatively small ; blades 

 spatulate, elliptic or ovate : spines usually numerous, long 

 and slender. 



j. Corymbs several-many-flowered, tomentose or pubescent: 



stamens 10-20: fruit pubescent, at maturity red, orange or 



yellowish : leaf-blades tomentose or pubescent at least 



beneath and on the petioles. 



Margins of the petioles without glands : corymbs compound, 



many-flowered. 



Margins of the petioles glandular or bearing stalked glands. 

 Sepals about 5 mm. long. 

 Sepals 7-10 mm. long. 

 Corymbs 2-5-flowered. 

 Corymbs many-flowered. 



k. Cory mbs5-12-flowered, glabrous: stamens 5-20: fruit glabrous, 

 at maturity red, dull greenish red or scarlet, usually pruin- 

 ose, the flesh firm or succulent : leaves glabrous when fully 

 grown (slightly scabrous or roughened in no. 158): blades 

 serrate and incised, those of leaves of the shoots truncate 

 or cordate at the base. 

 Flesh of the mature fruit firm. 

 Flesh of the mature fruit succulent. 



1. Corymbs several-many-flowered, pubescent or glabrous : sta- 

 mens 7-20 : fruit red, green and red or yellow, the flesh firm 

 or succulent : leaf-blades mostly shining, obovate, spatulate, 

 oval or elliptic, glabrous or nearly so when fully grown : 

 branches frequently armed with numerous large spines, or 

 occasionally unarmed. 



Corymbs more or less pubescent, at least during anthesis. 

 Corymbs glabrous. 



Corymbs densely pubescent. 



Fruit dull red, oval or pyriform. 



Fruit bright red, globose or subglobose. 

 Corymbs glabrous or glabrate. 



I. TOMENTOSAE. 



XI. EUFLAVAE. 



XII. IGNAVAE. 



XIII. SORORIAE. 



XIV. SEGNES. 



XV. VISENDAE. 



XVI. MICHAUXIANAE. 



XVII. INTEGRAE. 



XVIII. DENTATAE. 



XIX. ATTRITAE. 



XX. SENTAE. 

 XXI. ANISOPHYLLAE. 



XXII. COLONICAE. 

 XXIII. RECURVAE. 



XXIV. LEPIDAE. 



XXV. UNI FLORAE. 



XXVI. MOLLES. 

 XXVII. BILTMOREANAE. 



XXVIII TRI FLORAE. 

 XXIX. HARBISONIANAE. 



XXX. PRUINOSAE. 

 XXXI. TENUIFOLIAE. 



XXXII. BERBERIFOLIAE. 

 XXXIII. CRUS-GALLI. 



1. C. tomentosa. 



2. C. Chapmanii. 



3. C. neofluvialis. 



II. CORDATAE. 



.Leaf-blades broadly ovate, cordate, truncate or abruptly contracted at the base. 4. C. cordata. 



Inflorescence glabrous. 



Inflorescence villose-pubescent. 5. c. apiifolia. 



:Xeaf-blades spatulate or oblanceolate, narrowed or cuneate at the base. 6. C. spathtilata. 



