40. Crataegus Flabellàta (Bosc) K. Koch. Bosc's Thorn

Fig. 2374

Mespilus flabellata Bosc; Desf. Tab. de L'Ecole 2: 271. 1815. M. flabellata Bosc; Spach, Hist. Veg. 2: 63. 1834. C. flabellata K. Koch, Weissd. 240. 1853. C. crudelis Sarg. Rhodora 5: 143. 1903. C. blandita Sarg. Rhodora 5: 147. 1903.

A large shrub or small tree, with ascending branches, sometimes 20o high. Spines numerous, 1'-4' long; leaves ovate to broadly ovate, 1 1/4'-2 3/4' long, l'-2 1/2' wide, acute at the apex, broadly cuneate or truncate at the base, serrate or doubly serrate, sharply lobed, with the tips of the teeth often recurved, slightly villous above, becoming scabrate or glabrate; corymbs many-flowered, slightly villous; flowers 7"-10" broad; stamens about 10; styles and nutlets 3-5; fruit ellipsoid, 4"-6" thick, scarlet or crimson; flesh succulent.

Along the St. Lawrence River, Quebec. May; fruit ripe September.

40 Crataegus Flabell Ta Bosc K Koch Bosc s Thorn 71640 Crataegus Flabell Ta Bosc K Koch Bosc s Thorn 717

41. Crataegus Roanénsis Ashe. Roan Mountain Thorn

Fig. 2375

C. roanensis Ashe, Bull. N. Car. Agric. Coll. 175: 114.

1900. C. fluviatilis Sarg. Rhodora 5: 117. April 1903. C. ascendens Sarg. Rhodora 5: 141. May 1903.

A shrub or small tree, sometimes 20o high, with ascending branches and numerous curved spines !'-3/4'2 1/2' long. Leaves ovate or oblong-ovate, acute at the apex, broadly cuneate to cordate at the base, serrate with 3-6 pairs of acute straight lobes, 1'-2 3/4' long, 3/4'-2 1/4' wide, membranous, slightly villous, becoming glabrate, dark yellow-green above; corymbs glabrous or slightly villous; flowers about 8" broad; stamens 5-20, usually 5-10; styles and nutlets usually 3 or 4; fruit ellipsoid, ovoid or pyriform, crimson, 3" or 4" thick; flesh rather firm.

Quebec to Wisconsin, North Carolina and Tennessee. May; fruit ripe September.

42. Crataegus Macrospérma Ashe. Variable Thorn

Fig. 2376

C. macrosperma Ashe, Journ. E. Mitch. Soc. 16: 73. 1900. ? Mespilus cordata Mill. Dict. Ed. 8, n. 4. 1768: Fig. Pl. 119. pl. 179. 1760. Not Crataegus cordata Ait.

A shrub or small tree, sometimes 25o high, with ascending branches and numerous curved spines i'-2|' long. Leaves elliptic-ovate to broadly ovate, acute at the apex, rounded, truncate or rarely cordate at the base, serrate or doubly serrate, 3/4'-2 3/4' long, 3/4'-2 3/4' wide, membranous, slightly villous, becoming glabrate, dark yellow-green above; petioles slender, 1/2'-l' long; corymbs glabrous or slightly villous; flowers 7"-1o" broad; stamens 5-20, usually 5-10; styles and nutlets usually 3 or 4; fruit ellipsoid or pyriform, scarlet to crimson, often glaucous, 5"-9" thick, its flesh soft at maturity; calyx-lobes erect or spreading.

Nova Scotia and Maine to southeastern Minnesota. North Carolina and Tennessee. May; fruit ripe August-September. More than fifty different names have been given to what is essentially this species. Figured in our first edition as C. coccinea L.

42 Crataegus Macrosp Rma Ashe Variable Thorn 71842 Crataegus Macrosp Rma Ashe Variable Thorn 719