114 PENTAND^lIA— TETRAGYNIA. Parnassia. 



petals, each fringed at tlie upper edge with a row of 

 bristles, from 3 to 13 in number, all much shorter than 

 the petals, and each bearing a small transparent globe. 

 Filam. awl-shaped, spreading, every one in its turn in- 

 cumbent over the pistil. Anth. heart-shaped, flattened. 

 Germ, ovate, large. Styles none. Stigmas ^^ obtuse, per- 

 manent, subsequently spreading and rather enlarged. 



. Caps, of 4 cells, and 4 valves, ovate, with 4 slight furrows, 

 opposite to the partitions, in the middle of each valve ; 

 receptacles 4, linear, abrupdy terminating the partitions 

 at their inner edges. " Seeds numerous, oblong, curved 

 upwards, each bordered with a narrow, longitudinal 

 wing." Gdertiier. 



Roots fibrous, perennial. Heihs smooth. Stems simple, each 

 bearing one leaj\ and one white, very elegant, Jloxver. 

 Leaves undivided, entire, ovate, heart- or kidney-shaped ; 

 radical ones stalked. 



1 . P. palustris. Common Grass of Parnassus. 

 Leaves heart-shaped. Bristles of each nectary numerous. 



P. palustris. Linn. Sp. PL 39 1 . JViUd. i;. 1 . 1 5 1 6. H. Br. 340. 

 Engl.Bot.v.2.t.82. Rel. Rudb. 34./. Mill. Illustr.t.Xb. Hook. 

 Lond. t. 1 . Scot. 96. FL Dan. t. 584. Ehrh. PI. Off. 133. 



P. n. 832. Hall. Hist. t'. 1. 371. 



P. vulgaris et palustris. Rati Syn. 355. 



Gramen Parmissi. Ger. Em. 840. f. Lob. Ic.603.f. 



G. Parnasium. Dod. Pem]jt.564.f. 



Hepatica alba. Cord. Hist. 152, 2./. Gesn. Fasc. 9. t.4.f.\]. 



Pyrola rotundifolia palustris nostras, flore unico ampliore. Moris. 

 U.3. 505. sect.\2. t.lO.f.S. 



On spongy bogs and commons, especially in mountainous countries, 

 plentifully. Not rare in Norfolk. 



Perennial. September, October. 



The stems are about a span high, angular and twisted. Radical 

 leaves several, heart-shaped, more or less acute, with several 

 longitudinal ribs. Footstalks 3 or 4 times the length of their 

 leaves. Stem-leaf nearly sessile, not half way up the stem. FL 

 about an inch wide, scentless, each petal marked with greenish 

 pellucid ribs. Balls of the nectaries yellow. This is one of our 

 most elegant native plants. There are several other species, in 

 America and Nepal, abundantly distinguished by various cha- 

 racters, besides the smaller number of the bristles of their nec- 

 taries. Professor Hooker was unfortunately led to alter the 

 generic and specific character by Forskall, who referred to this 

 genus a most evident S^vcrtia. See S, decumbens. Willd. Sp. 

 Pl.v.\. 1330. 



