MALACEAE. 29 



apex, narrowed or somewhat cuneate at the base, 2.5-7.5 cm. long, serrulate- 

 crenulate : cymes terminal, but at length overtopped by the young sterile shoots : 

 corolla white or purplish-tinged, 8-12 mm. broad: pomes 4-6 mm. in diameter, 

 long-persistent. 



Swamps and low pinelands, n. Fla. and the upper pen. (Cont.) 



2. A. atropurpurea Britton. Shrub reaching a height of 4 m. : leaf -blades and 

 flowers quite similar to those of the preceding species: pomes oval to globose, 

 6-10 mm. long, purple-black. 



Low grounds, n. Fla. (Cont.) 



3. A. melanocarpa (Michx.) Ell. Shrub resembling the preceding species, but 

 larger: leaf -blades obovate or oval, obtuse, acute, or abruptly acuminate at the 

 apex, narrowed or cuneate at the base, crenulate: flowers similar to those of 

 the preceding species : hypanthium and pedicels nearly glabrous : pomes globose 

 or oval, 6-8 mm. in diameter. [A. nigra (Willd.) Britton.] 



and low woods, n. Fla. (Cont.) 



2. AMELANCHIEE,' Medic. Leaf -blades simple, toothed or rarely entire. 

 Cymes simple. Ponies berry-like, globular. Winter-spr. SERVICE-BERRY. MAY 

 CHERRY. 



Leaf-blades rounded or cordate at the base, glabrous, at least at maturity. 



1. A. canadensis. 

 Leaf-blades narrowed at the base, permanently pubescent. 2. A. oblongifolia. 



1. A. canadensis (L.) Medic. Tree becoming 17 m. tall: leaf -blades rounded 

 or cordate at the base, sharply and finely serrate, sometimes sparingly pubes- 

 cent when young, but early glabrous, 2.5-7.5 cm. long: pedicels slender: 

 petals linear, linear-spatulate or linear-oblong, 12-18 mm. long, 3-4 times the 

 length of the nearly or quite glabrous calyx and hypanthium: pomes globose, 

 red or purple, sweet, about 6 mm. in diameter. 



Dry woods, m. and w. Fla. (Cont.) 



2. A. oblongifolia (T. & G.) Eoemer. Shrub or small tree, the foliage and in- 

 florescence densely white-woolly when young, often nearly or quite glabrous 

 when old: leaf -blades rounded, or sometimes narrowed or subcordate at the 

 base, finely and sharply serrate nearly all around : pedicels short, seldom over 

 2.5 cm. long: petals spatulate or linear-spatulate, 6-14 mm. long, twice or thrice 

 as long as the calyx and hypanthium : pomes 6-8 mm. in diameter. SHAD-BUSH. 



Sandy woods, n. Fla. (Con*.) 



3. CBATAEGUS L. 2 Small trees or shrubs, usually armed with thorns or 

 spines. Leaves alternate: blades simple, petioled. Flowers terminal, cymose 

 or corymbose. Hypanthium cup-shaped or campanulate, adnate to the carpels. 

 Sepals 5, reflexed after anthesis. Corolla white or pink. Petals 5, spreading, 

 rounded, inserted on the margin of the disk in the throat of the hypanthium. 

 Stamens 5-25, inserted in 1-3 rows on the edge of the hypanthium: filaments 

 slender, incurved: anthers oblong or suborbicular, white, yellow, pink or 

 purple. Ovary inferior, or its summit free, composed of 1-5 carpels: styles 

 1-5, not united, persistent: stigmas terminal. Pome globose, pyriform or 

 oval, yellow, orange-red, blue or black, containing 1-5 bony carpels, each 



*The following species of Amelanchier have been reported from Florida. 

 Imperfect specimens of Amelanchier were collected in northern Florida many 

 years ago. The genus has not been observed in the state in recent years. 



2 Descriptions and keys taken from the monograph of Crataegus by Mr. C. 

 D. Beadle, published in my Flora of the Southeastern United States (1903) and 

 in the second edition of the same work (1913). 



