ordek 19.— the sundews. 



in 



4 D longifolia. Long-leaved S. Lvs. spatulate, on 

 lon^:, smooth stalks. 4-7^ White. (Fig. 20, 21.) 



6 D. linearis. Linear-leaved S. Lvs. Unear, obtuse; 

 stalks smooth. 3-6'. White. 



6 D. filiformis. Thread-leaved S. Lvs. filiform, long. 

 Scape If. Purple. 



2. DIOISrjE'A. Venus' Fly-trap. 



Sepals 5, spreading. Petals 5, obovate, with 

 pellucid veins. Stamens 10-15. Style 1. Stig- 

 mas 5, many-cleft. Capsule breaking irregularly 

 in opening, 1-celled, many-seeded. — if Glabrous 

 herbs. Leaves all radical, sensitive, closing con- 

 vulsively when touched. Scape umbelled. 



D Muscip'ula. A very remarkable plant, in sandy bogs, 

 at the South, sometimes cultivated. Leaves spread- 

 ing, the petiole broadly winged, ending in a roundish 

 blade which is fringed with epines, instantly closing 

 upon insects which alight upon it. Scape 6-12' 

 high, bearing an umbel of 8-10 white, handsome 

 flowers. Apr., May. + 



Fiff. 41^3. Venus' Fly-tr.-ip. Fig. 404. Ovary and style. 

 Fig. 405. Section of ovary. 



8. PARNAS'SIA. Grass- of-Parnassus. 



Sepals 



Petals 5, inserted on the calyx (pe- 



rigynons). Stamens also perigynous, in 2 rows, 

 the outer row of numerous sterile filaments, united 



in 5 sets, the inner row of 5 perfect stamens. Stigmas 4, sessile. Cap- 

 sule 4-celled. Seeds very numerous. — if Elegant herbs, with radical 

 leaves and 1 -flowered scai)es. 



1 p. Carohnia'na. Meadow G. Sterile filaments, 3 in each set. Leaves al)out 



7-veiiied, broadly oval or ovate, radical ones on long stalks, cauline few, ne.\r 

 the ground, sessile, clasping. Scape about If. high, bearing one flower at top, 

 which is about V across. Petals marked with green veins, July, Avg. 



2 P asarifolia. Broad-leaved G. Sterile filaments, 3 in each set. Lvs. renifonn. S. 

 8 P palus'tris. Swamp G. Sterile filaments, 9-15 in each set. Lvs. cordate. N. W. 



