BOSACE^. (rose fauilt.) 123 



5. B. RUBiaiN68A, L. (Tbub Swebi-Bbieb.) Climbing high; pridcUg 

 numerous, the larger ones strong and hooked, and the smatter awl-shaped; leaflets 

 doubly serrate, rounded at the base ; downy and clothed with fragratU russet 

 glands beneath ; frmi pear-shaped or obovate, crowned with the persistent caiyx-lobes. 

 — Eoad-sides and thickete. June-Aug. (Nat. from Eu.) 



6. R. mickXntha, Smith. (Smalleb-bi,. Sweet-Bkibr.) Prickles uni- 

 form and hooked; fruit elliptical and ovate; calyx-lobes deciduous; flowers smaller : 

 otherwise as No. 5. — E. New England. (Nat. from Eu.) 



Suborder in. VitJUTEM. The Pear Family. 



16. CBATJBOIJS, L. EUwthobn. White Thobn. 



Calyx-tube um-shaped, the limb 5-cleft. Petals 5, roundish. Stamens many, 

 or only 10-5. Styles 1-5. Fruit (calyx-tube) fleshy, containing 1 - 5 bony 

 1-seeded cai-pels. — Thorny shrubs or small trees, with simple and mostly lobed 

 leaves, and white (rarely rose-colored) blossoms. (Name from Kparos, strength, 

 on account of tlie hardness of the wood.) * 



* Corymbs many-Jlowered. 

 ■t- Fruit very small, depressed-globose (not larger than peas), bright red: flowers small: 



calyx-teeth short and broad: styles 5 : plants glabrous andgUmdless throughout. 



1. C« spatlmiata, Michx. Leaves thickish and skirdng,spatulate or 6h\a.n- 

 ceolate, with a hmg tapering base, crenate above, rarely cut-lobed, nearly sessile. — 

 Virginia and southward. May. — Shrub 10° - 15° high. 



2. G. COrdata, Ait. CWashington Thobn.) Leaves broadly ovate or 

 triangular, mostly truncate or a little heart-shaped at the hase, on a slender paiole, 

 variously 3 - 5-cleft or cut, and serrate. — Virginia, Kentucky, and southward. 

 Juno. — Trunk 15° -25° high. 



t- +- Fruit small (i' - i' long), ovoid, deep red : flowers rather large : styles 1-3. 



3. C. OxYACiifXHA, L. (Ekglish Hawthobn.) Smooth; leaves obovaie, 

 cut-lobed and toothed, wedge-form at the base ; calyx not glandular. May. — 

 More or less spontaneous as well as cultivated. (Adv. from Eu.) 



4. C. apiifolia, Michx. Softly pubescent when young, becoming gla^ 

 brous ; leaves roundish, with a broad truncate or slightly heart-shaped base, pin- 

 nately 5-7-cleft, with the crowded divisions cut-lobed and sharply serrate; 

 petioles slender ; calyx-lobes glandular-toothed, slender. — Virginia and south- 

 ward. March, April. 



■1 — 1- •!- Fruit large (J' - 1' long), red; flowers large : styles and stones of the fruit 

 even in the same species 1-3 (when the fruit is ovoid or pear-shaped) or i-5 (when 

 the fruit is globular) : stipules, calyx-teeth, bracts, S/'c. often beset with glands. 



5. C. COCCinea, L. (Scaelet-fbuited Thorn.) Glabrous through- 

 out; leaves thin, roundish-ovate, sharply toothed and cut, or somewhat cut-lobed, 

 usually abrupt at the base, on slender petioles; flowers white, often with a rosv 



- tinge (I' broad); fruit bright scarlet-red, ovoid (J' broad), scarcely edible. - 

 Thickets and rocky banks ; common. May. — A low tree. 



