ROSACEA. SILVA OF NORTH AMERICA. 33 
Stamens 20; anthers dark purple. 
Leaves ovate-oblong to elliptical . . 2. 2. 1. 1 1 we wwe ee ee «20. SARGENTI. 
Fruit large, red or yellow, conspicuously punctate ; nutlets usually 5, prominently ridged on the 
back ; corymbs many-flowered ; stamens 20; anthers rose color (occasionally yellow in No. 
21). Punctate. 
Leaves obovate-cuneiform, prominently veined . . . . . ..... . . . Q4. PUNCTATA.? 
Leaves suborbicular to oval or rarely oblong . . . . . «©. =... . « « + 22. SUBORBICULATA. 
Fruit medium size, globose (subglobose in No. 25), red or yellow ; nutlets 2 or 3, or 5, promi- 
nently ridged on the back ; corymbs many-flowered, villose. Colline. 
Stamens 20. 
Leaves obovate to oval, acute; anthers pale yellow. . . . . . . . . . . . 28. COLLINA. 
Leaves rhombic to obovate; anthers rose color . . . . . . . =... «. « « 24. SORDIDA. 
Leaves oval to obovate; anthers dark red. . . ..... =... . 6. « . 25. BRAZORIA. 
Stamens 10. 
Leaves obovate to broadly oval; anthers white . . . . .... =... . . 26. LerrerRMAnI. 
Leaves obovate-oblong; anthers rose-colored . . . . 27. PRATENSIS. 
Fruit large, subglobose to pyriform, scarlet, often edible; nutlets sual 5, vosusiosaliy 4, thin, 
pointed at the ends, usually obscurely grooved or slightly ridged on the back ; corymbs many- 
flowered, tomentose or pubescent; leaves broad, rounded, cordate or cuneate at the base. 
Molles. 
Stamens 20. 
Anthers light yellow. 
Leaves broadly ovate, thick and firm . . . . . . . . ee «© «© «© © « . 28, MOLLIS. 
Leaves oblong-ovate to oval, coriaceous. . . . . » + + « « « © « «© . « 29, ARKANSANA. 
Leaves oblong-ovate, membranaceous . . . . « «+ « « «+ « « « « « « « 80. SERA. 
Leaves ovate, cuneate atthe base . . . . . . ee we eee ehhh «CSL. CANADENSIS. 
Leaves oblong-obovate to oval, cuneate at the base . . . . . . « « . . . . 32, BERLANDIERI. 
Anthers rose color. 
Leaves broadly ovate, concave-cuneate at the base . . . . . . «. . « « . . 83. TEXAN. 
Leaves oval to obovate, rounded or cuneate at the base . . ... =... +. . 384. QUERCINA. 
Leaves oval to broadly ovate, cuneate atthe base . . . . . .. . =. =. . . 985, PYRIFORMIS. 
Leaves ovate, lustrous, glabrous . . . «ee ee ee te ew ew ee «86. CORTSCA. 
Stamens 10. 
Anthers light yellow. 
Leaves ovate, cuneate at the base . . «. «ee 1 ew ew ee eee he eh) «O87. SUBMOLLIS. 
Leaves broadly ovate or oval, mostly rounded or truncate at the broad base. . . . 38. ARNOLDIANA. 
Leaves ovate, mostly rounded or truncate at the broad base . . . . . . - + ~ 39. CHAMPLAINENSIS. 
Anthers rose color. 
Leaves ovate, acute, mostly broadly cuneate at the base . . . - . - «. - - ~ 40. ANOMALA. 
Leaves oval, rounded or broadly cuneate at the base . . . . . . . - + « . 4i. ELLWANGERIANA. 
Leaves oval, rounded at the base. . . ee 2 se ete we ee eo 42. PRINGLEI. 
Fruit large, subglobose, scarlet ; fruiting calyx sanch enlarged, prominent, the lobes dark red 
on the upper side toward the base; nutlets 5, ridged on the back; corymbs many or few- 
flowered, slightly villose; stamens 20; anthers rose color; leaves membranaceous, on 
vigorous shoots as broad or broader than long. Dvlatate. 
Leaves broadly ovate ; corymbs broad, many-flowered. - - + + + + + + + + 43. DILATATA. 
Leaves broadly ovate; corymbs compact, few-flowered. - - - + + ; . . 44. COCCINIOIDEs. 
Fruit large to medium size, oblong, scarlet; nutlets 3-5, prominently grooved and setelly 
ridged on the back; corymbs many-flowered, glabrous or tomentose ; stamens 5-15. Lobu- 
late. 
Anthers dark purple. 
Leaves ovate to oblong-ovate, acutely lobed, membranaceous, dark yellow-green . . 45. LOBULATA. 
Leaves oval or ovate, thick and firm, pale yellow-green . . - - - + + + + + 46, Honmestana. 
Leaves broadly ovate or oval, dark green, scabrate . «© + 2 + + s+ e+ + ee 47. PEDICELLATA. 
Leaves oval to obovate, acuminate . . - - + «© + © © © © © © © © 48. SCABRIDA. 
