ROSACEA 



387 



glaudular-dentate, glabrous on the outer and puberulous on the inner surface; sta- 

 mens 16-20; anthers light yellow; styles usually 2 or 3. Fruit ripening in Septem- 

 ber and October, on long slender pedicels, in few-fruited drooping clusters, globose 

 or subglobose, bright red or scarlet, f in diameter; flesh thin and mealy; calyx en- 

 larged, with spreading or erect persistent lobes ; nutlets 2 or 3, rounded and ridged 

 on the back, with a high narrow ridge, ^'-y^' long. 



A tree, sometimes 20 high, with a trunk 8'-9' in diameter, spreading branches 

 forming a broad flat-topped head, and slender nearly straight branchlets, villose at 

 first, becoming glabrous, pale reddish brown, and ultimately ashy gray, and some- 

 times armed with slender straight spines I'-l^' long. 



Distribution. Low open Oak and Hickory woods near Opelousas, Louisiana. 



22. Crataegus Mohri, BeadL 



Leaves obovate or rhomboidal, acute or acuminate, gradually narrowed and cu- 

 neate at the entire base, coarsely and occasionally doubly serrate above, with straight 

 or incurved teeth, when they unfold glabrous and slightly villose along the midribs 



and the lower side of the principal veins, nearly fully grown when the flowers open 

 early in May, and at maturity thin and firm or subeoriaceous, dark green, and very 

 lustrous above, pale below, I'-l^' long, |'-1' wide, usually with 4 pairs of thin pri- 

 mary veins, stout midribs sometimes puberulous on the under side and bright red in 

 the autumn; their petioles more or less winged above, frequently red at maturity; 

 on vigorous leading shoots sometimes 3' long and 2' wide, and mostly broadly oval 

 and rounded at the apex, or ovate and acute, coarsely doubly serrate and frequently 

 divided toward the apex into short broad acute lobes, with broadly winged petioles 

 occasionally glandular, with minute dark glands. Flowers cup-shaped, about f 

 in diameter, on slender elongated pedicels, in loose thin-branched many-flowered 

 compound glabrous or villose corymbs; calyx-tube narrowly obconic, glabrous or 

 occasionally pilose below, the lobes linear-lanceolate, entire or finely glandular-ser- 

 rate; stamens 20; anthers small, light yellow; styles 3-5, surrounded at the base 

 by a narrow ring of pale hairs. Fruit ripening about the middle of October, 

 gracefully drooping on elongated thin bright red pedicels, in many-fruited clusters, 

 subglobose to short-oblong, somewhat flattened at the apex, full and rounded at the 



