326 ORDER 47. ROSACES. 



6. Canad^nsis L. Glabrous; Ifls. oblong, cordate, obtuse, serrate ; spikes cylin- 

 dric, very long; stam. much longer than the cal. 14 I fl wet meadows, Brit. Am. 

 to Ga. along the rats., and cultivated in gardens. St. 2 to 3f high, smooth, striate, 

 sparingly branched. Slip, leafy, serrate. Lfts. 2 to 4' long, ^ to \ as wide, petio- 

 late, mostly stipellate. Spikes 3 to G' long, terminating the long, naked branches. 

 Bracteoles 3. Calyx greenish-white, resembling a corolla. Aug. 



3. POTE'RIUM, L. BURNET. (Literally [in Lat.] a drinking vessel, 

 nncl hence a beverage.) Flowers 8 . Calyx tube contracted at the. 

 mouth, 3-bracteolate, limb 4-parted, petals ; stamens 20 to 30 ; ovaries 

 2 ; stigma penicillate ; aehenia dry, included in the calyx. Herbs with 

 Jiiequally pinnate Ivs. Fls. spicatc. 



P. Sanguisorba L. Herbaceous ; st. unarmed, angular, and with the Ivs., smooth : 



. Ifls. 7 to 11, ovate or roundish, deeply serrate; spikes or heads subglobous, the 



lower fls. starninate. If Occasionally cultivated as a salad, but is now less valued 



in medicine than formerly. It is said by Hooker to be native about Lake Huron. 



4. CKRYSOBALA'NUS, L. COCOA PLUM. (Gr. xpvabc, gold; /JiOa- 

 vo, acorn; in reference to the yellow fruit.) Calyx 5-cleft; petals 5 ; 

 Btamens about 20, in a single series, ovary solitary, sessile, the style aris- 

 ing from the base ; ovules 2, collateral ; drupe 1 -seeded, with thin pulp. 

 Shrubs unarmed, with entire, veiny Ivs., minute stipules, and terminal 

 paniqiys. 



C. oblongifolius MX. Lvs. oblong, varying to oblar.ceolate, subsessilc, pedicels 

 :aud calyx tomentous-hoary ; filaments and ovary glabrous ; petals sessile; nucleus 

 of the-fruit not grooved. Pine barrens. Ga., Ala. and Fla. A Bhrub with a plen- 

 der, prostrate stem or wood}' rhizome, sending up short branches (8 to 12'), with 

 smooth, coriaceous, subentiro Ivs., very glossy above, and A r ery strongly veined, 

 acute or obtuse. Fls. quite small, white. Fruit oblong, as largo as n plum. 

 May, Jn. 



5. CER'ASUS, Juss. CHERRY. (Primus L.) (Name from Cerasui*, 

 a town in Pontus, whence originated the garden cherry.) Calyx 5- 

 cleft, regular, deciduous; petals much spreading; stamens 15 20; 

 ovary 2-ovulcd; drupo globous, succulent, very smooth, destitute- of a 

 glaucous, bloom ; stone subglobous, smooth, with no border. Trees or 

 shrubs. Lvs. conduplicate (folded) in vernation. 



Leaves evergreen. Racemes axillary, bractless X.x J 



Leaves deciduous. Uacemes leafy at base Is'os. 2, 3 



Umbefc hitcr.il, leafless, Native Xos. 4. ft 



Exotic Nos. C, 1 



J. C. Caroliniana MX. CHERRY LAUREL. Lvs. obloug-oblanceolate. acuminate, 

 on short petioles, entire, coriaceous ; fls. small, in numerous, dense racemes 

 shorter than the Ivs. ; drupes persistent. Along rivers, S. Car. to Fla. and La., 

 and much cultivated. A small, beautiful evergreen tree, 30 to 50f high. Lvs.- 

 about '2^' by 1', glabrous, shining above. Drupes black, juiceless, 4" long. They 

 are considered poisonous as well as the leaves. In gardens this tree is trimmed 

 into the semblance of walls, domes, arbor-, and all manner of fantastic forms. 



2 C. serotina DC. BLACK or WILD CHERRY. Lvs. firm, oval-oblong or ellip- 

 tic, acuminate, smooth, shining above, unequally glandular-serrate; petioles witli 

 2 to 4 glands; rac. spreading, elongated. A largo forest tree throughout the U. 

 S. Trunk 50 to 80f high, of uniform size and undivided to the height of 20 to 

 30f, 2 to 4f diam. Bark black and rough. Lvs. ?> to 5' long. J as wide. Iti May 

 and June it puts forth numerous cylindric clusters of white fls. Fruit nearly 

 black when mature, bitterish, yet pleasant to the taste, and is greedily devoured 

 by birds. The wood, extensively used in cabinet work, is compact, fine-grained, 

 and receives a high polish. Tho bark is tonic, with a strong, bitter taste. 



3 C. VIrginiana DC. CHOKE CHERRY. Lvs. smooth, oval or obovate, short- 

 pointed, thin, not shining, with sharp, subulate scrralures, veins bearded on each 



