Obdsb '73.— BBICAGEL^. 493 



23. CYRIL'LA, L. (In honor of Dominico Cyrilli, physician and 

 botanical author, Naples.) Calyx 5-parted, minute, petals 5, distinct, 

 pointed, spreading; stamens 5, hypogynous anthers opening length- 

 wise; style short, with 2 stigmas; capsule 2-celled, 2-seeded, indehis- 

 oent ;• seeds suspended. — A large shrub with the branches irregularly 

 whorled, with entire, elliptic-oblong, perennial Ivs. and the \yhite fls. in 

 slender clustered racemes. 



C. racemifldra "Walt — ^Margins of swamps and streams, in pine barrens, N. Car. 

 to Fla. Shrub 12 to 18f high, with spreading branches and a light gray bark. 

 Lvs. varying from oval to narrow-oblong, mostly acute, very smooth, tapering to 

 a short petiole. Fls. very small, in racemes 4 to 6' long. The racemes and new 

 branches simultaneously spring from the apex of the preceding years' growth. 

 Jn. 



24. MYLOCA'RIUM, Willd. Buckwheat Teee. (Gr. iivXri, a mill, 

 Kdpvov, a kernel, a fanciful name.) Calyx 5-toothed, minute ; petals 5, 

 obovate, obtuse ; stamens 10, very short ; pistil with winged angles ; cap- 

 sule corky, 2 or 3-winged, 3-celled, with 3 subulate seeds. — An ever- 

 green shrub, with branches irregularly whorled, elliptical lvs., and ter- 

 minal rac. of white, fragrant fls. 



M. ligustrinum Willd. — Borders of swamps, Ga. and Pla. A perfectly smooth, 

 elegant shrub, 4 to 8f high. Lvs. thick, rather acute, entire, flat, veinless, ses- 

 sile, 1' to 18" long. Fruit drupe-like, pendulous, 2, rarely 3 of the angles pro- 

 duced into corky wings, suggesting the idea of buckwheat. Apr., May. 



Suborder IV. PYEOLE^. The Wintbrgreen Tribe. 



25. PYR'OLA, Salisb. Wintergreen. (Lat. diminutive of Pyrus, 

 as the leaves (of P. elliptica) resemble those of the pear tree.) Calyx 

 6-parted ; petals 6, equal ; stamens 10, anthers large, pendulous, fixed 

 by the apex, 2-horned at base, opening by 2 pores at top ;' style thick 

 as if sheathed ; stigmas 5, appearing as rays or tubercles ; capsule 5- 

 celled, 5-valved, opening at the angles, many-seeded. — Low, scarcely 

 suffruticous, evergreen herbs. Lvs. radical or nearly so, entire. Scapes 

 mostly racemous, from a decumbent stem or rhizome. (Fig. 345.) 



§ stamens and style straight. Stigmas peltate, 5-raye(l Nos. 1, 2 



§ Stamens .isconding. Style declined and curvetl. Stipma 5-tubercle(l. (a) 



a Leaves dull (not.shining). Petals greenish-white „ Nos. S, 4 



a Leaves thick and shining. Flowei-s Vhite or rose-colorea. Nos. 5, 6 



1 P. secTlnda L. Lvs. broadily ovate, acute, subserrato, longer than the pe- 

 tiole ; rao. secund ; cor. dbhng. — In dry woods, Can. and Nor. States. Plant 5 to 

 8' high, bearing one or two fascicles of leaves near the base. Lvs. acute at each 

 end, with appressed-pointed serratures, appearing orenate. Ped. scape-like, bear- 

 ing a 1-sided cluster of 10 to 15 greenish-white fls. Petals oblong, shorter than 

 the style. Jn., Jl. 



2 P. minor L. Lvs. roundish-ovate, coriaceous, repand-crenulate ; petioles dilated at 

 base, shorter than the laminae ; rac. subspicate ; bract equaling or exceeding the 

 very short pedicels ; caL lobes short, subacute ; sty. included in the globular cor- 

 olla. — In woods. White Mts., N. H., and Brit. Am. Scape angular, 6 to 9' higli. 

 Lvs. mucronulate at apex. Cor. white, slightly tinged with purple. Jl. 



3 P. chlordntha Swartz. Lvs. orbicular, cremdaie, Jialf as long as the narrow 

 petiole ; rac. few-flowered ; segm. of the caL very short, obtuse ; pet. oblong ; 

 pores of the amth. coTispicuomly tuhula/r ; stig. projecting beyond the sheath. — In 

 woods, Can. and N. States, common. Lvs. smaller than in either of the follow- 

 ing, often perfectly orbicular, but more frequently inclining to ovatej J to 1' diam., 

 smooth, shining, coriaceous, petioles 1 to 2' long. Scapes erect, angular, 8 to 12' 

 Ugh, bearing a long open raceme. Fls. nodding, large, petals greenish white 

 Jn., Jl. 



