ORDER 73. ERICACEAE. 493 



23. CYRIL'LA, L. (In honor of Dominica 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- 

 cent ; seeds suspended. A large shrub with the branches irregularly 

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

 slender clustered racemes. 



C. racemiflora Walt. Margins of swamps and streams, in pine barrens, K Car. 

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

 Lvs. varying from oval to narrow-obloug, 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 TREE. (Gr. \LV\T\, a mill, 

 ttdpvov, 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 Ivs., and ter- 

 minal rac. of white, fragrant fls. 



M. ligustrinum "Willd. Borders of swamps, Ga. and Fla. 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. PYROLE^E. THE WINTERGREEN TRIBE. 



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

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

 5-parted; petals 5, 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-rayed Nos. 1, 2 



Stamens ascending. Style declined andcurved. Stigma 5-tubercled. (a) 



a Leaves dull (hot shining). Petals greenish-white Nos. 3,4 



a Leaves thick and shining. Flowers white or rose-colored Nos. 5, 6 



1 P. secunda L. Lvs. broadly ovate, acute, subserrate, longer than the pe- 

 tiole ; rac. secund ; cor. oblong. 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 crenate. Fed. 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' high. 

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



3 P. chlorantha Swartz. Los. orbicular, crenulate, half as long as the narrow 

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

 pores of the anth. conspicuously tubular ; 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 ovate, \ to 1' diam., 

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

 high, bearing a long open raceme. Pis. nodding, large, petals greenish white 

 Jn., Jl. 



