^8 Spring Flora of Ohio. 



1. Genus SUL-LI-VAN'-TI-A. — Plants low, reclined-spreading; leaves 

 rounded, cut-toothed, or slightly lobed ; flowers small, white, in a 

 branched loosely-cymose panicle on a nearly leafless stem ; petals 5, 

 oblanceolate, stamens 5. 



Sul-li-van'-ti-a sul-li-van'-ti-i (T. & G.) Britl. [S. ohioiiis T. & G.) 

 Sullivantia. — On shaded cliffs; common. 



2. Genus SAX-IF'-RA-GA. — Herbs with clustered root-leaves, those 

 of the stem alternate ; calyx free or cohering with the base of the 

 •ovary; stamens 10. 



Sax-if'-ra-ga vir-gin-i-en'-sis Mx. Early Saxifrage. — Low, 4-9 in. high; 

 leaves obovate or oval-spatulate, crenate-toothed ; lobes of the caWx not 

 half as long as the white petals. 



Sax-if'-ra-ga penn-syl-van'-i-ca L. Swamp Saxifrage. — Large, 1-2 ft. 

 high ; leaves oblanceolate, 4-8 in. long, obscurely toothed, narrowed 

 at base into a short and broad petiole ; lobes of the calyx about the 

 length of the greeni.sh small petals. 



3. Genus TI-A-REL'-LA. — Calyx bell-shaped, petals o, with claws; 

 stamens 10, long and slender; flowers white in a simple raceme. 



Ti-a-rel'-Ia cor-di-fo'-li-a L. False Mitre-wort. — Leaves heart-shaped, 

 sharply lobed and toothed, downy beneath; stem leafless or rareh- 

 with 1 or 2 leaves. 



4. Genus HEU'-CHE-RA. — Calyx bell-shaped, petals 5, .spatulate, 

 small; leaves round-cordate, principally from the rootstock; flowers 

 small, greenish or purplish, in a long and narrow panicle. 



Heu'-che-ra a-mer-i-ca'-na L. Alum-root. — Stems 2 or .> ft. high, 

 glandular; the spatulate petals not longer than the calyx-lobes. 



5. Genus MI-TEL'-LA. — Calyx short, petals 5, slender, pinnatifid, 

 stamens 10, included; flowers small in a slender raceme or spike. 



Mitella diphylla L. Mitre-wort: Bisiiop's Cap. — Hairy; leaves cordate, 

 acute, somewhat 3 to 5-lobed, those of the stem 2, opposite, nearly 

 -sessile; flowers white, numerous. 



Mi-tel'-la nu'-da L. Naked Mitre-wort, — Small and slender; leaves 

 rounded or reniform, deeply and doubly crenate, stem usually leafless; 

 flowers few, greenish. Northward ; reported for Ohio. 



