48 Spring Flora of Ohio. 



Ba-tra'-chi-um tri-cho-phyl'-lum (Chx.) ]k)sscli. [Ranunculus aquatilis 

 van trichophyllus Gr.) Common White Water Crowfoot. — Leaves mostly 

 petioled, their divisions rather long and soft, collapsing more or less 

 when withdrawn from the water. 



18. Genus FI-CA'-RI-A. — Sepals o ; petals S-9, yellow ; peduncles 

 scape-like ; leaves roundish-cordate, roots tuberous thickened. 



Fi-ca'-ri-a fi-ca'-ri-a (L,.) Karst. [Ranunculus ficaria L.) — Occasion- 

 ally escaped from gardens. 



19. Genus THA-LIC'-TRUIVl. — Sepals 4-5, usualh- caducous, petals 

 none ; leaves alternate, 2 to 3-ternateh' compound, the petioles dilated 

 at base ; flowers dioecious. 



Tha-lic'-trum di-oi'-cum I.. Early Meadow Rue. — Stems 1-2 ft. high, 

 smooth and pale or glavicous ; leaves all with general petioles. 



Tha-lic'-trum pur-pu-ras'-oens L. Purplish Meadow Rue. — Stems 2-4 ft. 

 high, usually purplish ; stem leaves sessile or nearly so. 



20. Genus NI-GEL'-LA.- — Calyx of 3 colored sepals; petals 5, cleft; 

 the ■") ovaries united below ; leaves finely divided. 



Ni-gel'-la dam-as-ce'-na L. Fennel Flower: Ragged Lady. — Flower 

 bluish, surrounded b}- a finely-divided leafy in\olucre. Introduced. 



XXVIII. Order BER-BER l-DA'-CE-/E. BARBERRY FAMILY.— Shrubs 



or herbs; petals 6-9, stamens G-IS; anthers usually opening by 2 valves 

 or lids hinged at the top. 



Petals 0-9, stamens (i-lS ; frviit manj--sc-eded ^a . 



Petals 6, stamens 6 : frnit few-seeded b . 



a. Petals G-9, stamens 12-18, anthers not opening by valves Podophyllum. 1 



a. Petals and stamens usually 8, anthers opening by valves .Jeffersonia. 2 



b. Herbs with greenish flowers, petals thick and short Caulophyllum. 3 



b. Shrubs with yellow flowers and wood, petals with 2 glands Berberis. 4 



1. Genus POD-O-PHYL'-LUM.— Creeping rootstock; stem 2-leaved, 

 1-flowered ; sepals (i, fugacious ; fruit a large flesh}- berry. 



Pod-o-phyl'-lum pel-ta'-tum L. May Apple; Mandrake. — Leaves peltate, 

 5 to 9-parted ; flower white, large. 



2. Genus JEF-FER-SO'-NI-A.— Sepals usually 4, fugacious; pod pear- 

 shaped, opening by a lid ; leaves radical, with 2 half-ovate leaflets. 



