ERICACEAE. 51 



The unilateral flowers are sufficient to distinguish it from the 

 other species. 



Serrated Winter-green. 



Freiich, l'yrole Unilalerale. 



Sub-Genus II.— MONESES. SaJisb. 



Corolla 5-partite ; the segments nearly flat or but slightly con- 

 cave, spreading. Anther-cells produced into horns, at the apex 

 of which are placed the pores by which they open. Stigma with 

 5 long acute lobes. Capsule with the valves not connected by 

 fibres after dehiscence. 



SPECIES V.-PYROLA UNIFLORA. Linn. 



Plate DCCCC. 



Batch. Ic. F1. Germ, et Helv. Vol. XVII. Tab. MCLVI. Figs. 1, 2, 3. 

 Billot, FL Gall, et Germ. Exsicc. No. 1709. 



Moneses grandiflora, Salisb. D. C. Prod. Vol. VII. p. 775. Bab. Man. Brit. Bot. ed. v. 

 p. 218. Hook. & Am. Brit. FL ed. viii. p. 275. 



Leaves not confined to a terminal rosette, rather thin, roundish 

 or subrhomboidal-roundish, spathulate, obtuse at the apex, repand 

 or crenate-serrulate. Elowers solitary at the extremity of the 

 scape, at first slightly drooping, afterwards erect. Calyx-segments 

 roundish - oval, very obtuse, shortly-ciliated. Petals nearly flat, 

 spreading, white. Filaments curved outwards at the base, then 

 ascending. Style straight, much longer than the stamens ; stigma 

 large, peltate, with 5 elongate acute erect lobes, but destitute of 

 a ring projecting laterally below the tubercles. Capsule erect ; 

 style longer than the capsule ; stigmatic lobes elongated in fruit. 



In woods. Very rare. At Scone, Perthshire ; fir wood at 

 Brody Ilouse, near Eores, and oak wood at Knock of Alves, near 

 Elgin, Moray ; Aberdeenshire ; fir wood near Coul, Boss-shire ; 

 islands of Harris and Bernera, in the Hebrides ; and at Dunroban, 

 in Sutherland. 



Scotland. Shrub. Summer. 



Stem short, with few leaves, but these distributed over it, as in 

 P. sccunda. Lamina of the leaves i to 1 inch long, more gradually 

 attenuated into the petiole than in the other British species. Scape 



U. OF ILL US. 



