460 ERICACEAE. Moneses. 



1. M. uniflora, Gray. A small and low perennial, with a cluster of round or 

 obovate short-petioled crenulate leaves, and a scape 2 to 4 inches high, terminated 

 by a handsome white or flesh-colored flower two thirds of an inch in diameter. 

 Pyrola unifl.ora, Linn. Moneses grandiflora, Salisb. 



In cold bogs round the northern hemisphere ; doubtless within the limits of the State at high 

 elevations, as it occurs north and east of them. 



14. PYROLA, Tourn. WINTERGREEN. 



Corolla of 5 concave and more or less converging petals. Stamens 10 : filaments 

 ascending or straight, subulate, naked : anthers as in the preceding genera, either 

 with or without a tubular prolongation of the extremity of the cells, which open by 

 a round hole. Style generally long : stigma 5-lobed or 5-rayed. Capsule depressed- 

 globose, 5-lobed, 5-celled, loculicidally 5-valved from the base upward : edges of the 

 valves commonly cobwebby when opening. Low and smooth perennial herbs ; 

 with running subterranean shoots, broad and petioled leaves close to the ground, 

 and a more or less scaly-bracted scape bearing a simple raceme of white, greenish, or 

 rose-colored nodding flowers. 



The geniis, and several of the 12 to 14 species, extend round the world in the cooler parts of 

 the northern temperate zone. Some divide it into three genera, but on characters of small 

 account. 



1. Corolla and stamens regular: petals with two tubercles at base inside: style 

 straight : stigma large, depressed, at length obtusely 5-lobed. 



1. P. secunda, Linn. Leaves clustered or somewhat scattered on ascending 

 shoots, thin, ovate, serrulate, on naked petioles : scape 3 to 5 inches high, bearing 

 several or numerous flowers in a close one-sided raceme : petals oval-oblong, green- 

 ish-white, not at all spreading, shorter than the slender style : anthers blunt. 



Woods in the higher Sierra Nevada, at Donner Pass, &c. ; thence northward and eastward 

 round the world. 



2. Corolla somewhat irregularly spreading: stamens more or less declined and 

 curved toivards the upper side of the flower : style long, turned downward and 

 more or less curved : stigma narrower than the apex of the style, surrounded 

 by a ring or collar, from which the 5 lobes (more or less concreted into one, 

 and at first almost included] at length conspicuously project. 



2. P. rotundifolia, Linn. Leaves coriaceous, shining above, orbicular, varying 

 to ovate, round-obovate, or round-reniform, on slender naked petioles : scape with 

 the loosely many-flowered raceme 6 to 14 inches high, scaly-bracted : bracts lanceo- 

 late or ovate-lanceolate : lobes of the calyx mostly lanceolate or triangular-lanceolate 

 and about half the length of the broadly obovate (white, greenish-white, or rose-pur- 

 ple) petals : cells of the anther slightly contracted into an obscure neck under the 

 orifice. The Californian specimens as yet seen all belong to the 



Var. bracteata, Gray. A large form : leaves 2 or 3 inches long, often serrulate : 

 scape a foot or more high, usually conspicuously but remotely scaly-bracted : anthers 

 prominently mucronate at base. P. bracteata, Hook. P. data, Nutt. Thelaia 

 bracteata, Alefeld in Linnsea, xxviii. 57. 



In coniferous woods, Mendocino to Sierra Co., and north to British Columbia. The var. 

 uliginosa, Gray, common on the northern borders of the Atlantic States, occurs on the mountains 

 in Nevada, and a form near it at Carson City. It has smaller pink flowers with red-purple 

 anthers, and shorter triangular- ovate calyx-lobes. 



3. P. picta, Smith. Leaves thick, coriaceous, pale (at least beneath, sometimes 

 purplish), and above commonly variegated or blotched with white, ovate varying to 

 obovate and oblorig-spatulate or lanceolate-oblong, on short or else margined petioles : 



