ERICACEAE. 



'240 



Pedicels as long as the bracts at base. Petals white, variously tinged with 

 red, longer than the stamens. June. Round-leaved Pijrola. Shin-leaf. 



2. P. asarifo'lia. 



Leaves reniform-orbicular, coriaceous, entire or crenulate, shorter tlian the 

 dilated petiole ; scape angular, furrowed ; raceme lax, many-flowered ; seg- 

 ments of tlie calyx ovate, acute, appressed ; stigma clavale, with the disk 

 elono-ated and 5-lobed. In old woods. Leaves all radical, ]2 — 18 lines 

 in diameter, coriaceous, smooth and shining, conspicuously cordate at base, 

 lono-er than, but not twice as long as, the margined petioles. Scape 5 — 10 

 inches high, purplish, bracteate at base and near the middle, racemose one 

 half its leno-th. Flowers nodding, remote, large, deeply tinged with purple in 

 all their parts. Pedicels half an inch long, equaling the bracts at base. Style 

 of about the same length and curvature as pedicel, but thicker, tipped with 5 

 elongated teeth. June. Very distinct from P. rotundifolia, or any other 

 species. Jlsarum-leaved Pyrola. 



3. P. CHLORA'NTHA. Sicartz. P. rotundifolia. JlfuA., <^-c. 



Leaves orbicular, crenulate, half as long as the narrow petiole ; raceme few- 

 flowered; segments of the calyx very short, obtuse ; petals ohXong; •pores of 

 the anthers inhxAs.! ; stigmas ciavate, with the disk elongated, and olobed. 

 In woods, common. Leaves smaller than in either of the preceding species, 

 often perfectly orbicular, but more frequently inclining to ovate, one half to one 

 inch in diameter, smooth, shining coriaceous. Petioles 1 — 2 inches long. 

 Scapes erect, angular, 6 — 12 inches high, bearing a long, open raceme. 

 Flowers nodding, large, remote, pedicels half an inch long, each in the axil of 

 a very short bract. Petals greenish white. Anther tubes conspicuous. June, 

 July. Green-flowered Pyrola. 



4. P. ELLl'PTICA. 



Leaves elliptical, membranaceous, obscurely dentate, longer than the 

 petioles-, scape mosWy naked; calyx small, with ovate, obtuse segments; 

 pores of the anthers short, tubular. In woods. Leaves 1 — 2 mches long, 

 more than half as wide, mostly acute and subentire, thin, smooth and light 

 green. Scape 5 — 9 inches high, slender, seldom bracteate, bearing short 

 racemes. Flowers nodding, very fragrant. Pedicels longer than the bracts, 

 but only half as long as the declinate, recurved style. Petals white. July. 



Pear-leaved Pyrola. 



* * Siameus erect. Style straight. 



5. P. secu'nda. 



Si?//e straight ; leaves ovate, acute, subserrate, longer than the petiole; 

 raceme secund. In dry woods. Stem 2 — 3 inches high, bearing one or two 

 fascicles of leaves near the summit. Leaves broadly ovate, acute at each end, 

 with appressed, pointed, serratures. Petioles an inch long. Peduncles scape- 

 like, .5 — 7 inches high, bearing a I-sided cluster of 10 — 1-5 greenish white 

 flowers. Petals oblong, shorter than the style. Jn. Jl. One-sided Pyrola. 



6. P. UNIFLORA. 



Leaves suborbicular, petiolate, smooth, serrate ; scape l-flowered ; stijle 

 Btraight. Woods, in Keene, N. H., according to Dr. Bigelow, but I have 

 sought it there in vain. Scape but 2—:? inclu's higii, erect, bearing a single, 

 large, white, fragrant flower. Anthers with the pores elongated-tubular. 

 Style short, stigma peltate. June. Per. One-flowered Pyrola. 



