SAXIFKAf!ACE.13. ' 7-7 



usually only one low down on the stalk. Flower an inch 

 across, the petals m-nch longer than- the calyx. — Beaver 

 meadows and wet banks. 



2. P. palUStpiS, L. Sterile filaments 9-lS in each set. 

 Scapes 3-10 inches high. Flower nearly an inch across, the 

 petals not much longer than the sepals. Leaves cordate. — 

 Sandy tanks. 



3. P. parviflO'ra, DC. Petals but little longer than the 

 sepals. Sterile filaments about 7 in each set. Leaves ovate 

 or oblong. — Atl. Prov. and rforthward. 



■ 3. SAXir'lCAKA, L. SAXiriiAGE. 



1*1. S. Vitginien'siS, Miohx. (Early Saxifrage.) , stem 

 4-9 inches high. Scape plammy. Leaves obovate, crenate- 

 ly toothed. Petals white, oblong, twice as long as the sepals, 

 -^^ocks and hillsides. 



2. S. trieuspida'ta, Eetz. Stems tufted, 4r-8 inches high. 

 '^Leaves alternate, oblong or spathulate, with 3 rigid sharp 



teeth at the end. Petals yellow. — Chiefly N.and N."W. 



3. S. Aizo'on, Jaoq. Scape 5-10 inches high. Leaves 

 thick, spathulate, with white finely-toothed •margins. Petals 

 cream-colour, obovate, often spotted at the base. — Moist 

 rocks, Atl. Sea-coast and northward. 



4.*l»IITEIi'][.A, Tourn. Mitre-wokt. Bisnor's-OAP. 



1. M. dlphyl'la, L. (Two-lbaved Mitre-wokt.) Stem 

 hairy. Leaves cordate, 3-5-lobed, those on the scape 2, op- 

 posite, nearly sessile. Flowers white, oblong.- -Eich woods. 



2. M. nuda, L. (Naked-stalked M.) Stem small and 

 delicate. Leaves kidney-shaped, doubly crenate. Scape 

 leafless, few-flowered. Flowers greenish. — Deep woods, on 

 moss-covered logs, etc. 



5. TIARF.L'LA, L. FALSE MlTEE-WORT. 



T. eordifo'lia, L. Scapes leafless, 5-12 inches high. 

 Leaves heart-shaped, sharply toothed, sparsely hairy above; 

 downy beneath. Petals white, oblong. — Erch woods. 



