Genus 4. 



BARBERRY FAMILY. 



129 



I. Diphylleia cymosa Michx. Umbrella- 

 leaf. Fig. 1959. 



D. cymosa Michx. Fl. Bor. Am. i ; 203. 1803. 



Erect, stout, i°-2° high, glabrous or nearly so 

 Basal leaves solitary, long-petioled, i°-2° in 

 diameter, peltate near the center, deeply 2-cleft, 

 many-lobed, the lobes acute or acuminate, sharply 

 dentate ; cauline leaves 2, similar, smaller, peti- 

 oled, constricted in the middle and generally pel- 

 tate near the margin ; cyme many-flowered, 2-3' 

 broad; flowers white; petals flat, oblong, obtuse; 

 fruiting pedicels slender, i' long or more; berries 

 blue, globose to oblong, 6" long. 



In woods, Virginia to Georgia and Tennessee, along 

 the mountains, mainly at higher altitudes. May- June. 



5. JEFFERSONIA B. S. Barton, Trans. Am. Phil. Soc. 3 : 342. 1793. 



Glabrous perennial herbs, with basal palmately-veined or palmately-lobed leaves, and 

 solitary white flowers borne on slender scapes. Sepals 4, occasionally 3 or 5, petaloid, 

 caducous. Petals 8, flat, longer than the sepals. Stamens 8; filaments slender; anthers 

 dehiscent by valves. Pistil i; ovary ovoid, many-ovuled; stigmas 2-lobed. Capsule leathery, 

 pynform, half-circumscissile near the summit. Seeds oblong, arillate. [In honor of Thomas 

 Jefiferson.] 



A genus of 2 species, the typical one native of eastern North 

 America, the other of Manchuria. 



1. Jeffersonia diphylla (L.) Pers. Twin-leaf. Fig. 

 i960. 



Podophyllum diphyllum L. Sp. PI. 505. 1753. 



Jeffersonia binata B. S. Barton, Trans. Am. Phil. Soc, 3 : 342. 1793. 

 Jeffersonia Bartonis Michx. Fl. Bor. Am. i : 237. 1803. 

 Jeffersonia diphylla Pers. Syn. i : 418. 1805. 



Erect, 6'-8' high when in flower, attaining i6'-i8' in fruit. 

 Leaves glaucous beneath, long-petioled, cordate or reniform, 

 2'-(>' long, 2'-4' wide, parted longitudinally into 2 obliquely 

 ovate obtuse lobed or entire divisions; lobes rounded, the 

 sinuses sometimes 9" deep; scape naked, i-flowered; flowers 

 white, about l' broad; petals oblong, stigma peltate; capsule 

 about l' long, short-stipitate. 



In woods, eastern Pennsylvania, New York and Ontario to Wis- 

 consin, Iowa, Virginia and Tennessee. Ascends to 2500 ft. in Vir- 

 ginia. May. Ground-squirrel pea. Helmet-pod. Rheumatism- 

 root. 



6. PODOPHYLLUM L. Sp. PI. 505. 1753. 



Erect perennial herbs, with horizontal poisonous rootstocks, large peltate palmately 

 lobed leaves, and solitary white flowers. Sepals 6, petaloid, fugacious, the bud with 3 

 fugacious bractlets. Petals 6-9, flat, obovate, longer than the sepals. Stamens as many or 

 twice as many as the petals; anthers linear, longitudinally dehiscent. Pistil I (rarely sev- 

 eral) ; ovary ovoid, many-ovuled, forming a large fleshy berry in fruit. Seeds numerous, 

 obovate, enclosed in fleshy arils. [Greek, Anapodophyllum, duck-foot-Ieaf.] 



A genus of about 4 species, the following typical one native of eastern North America and 

 Japan, the others Asiatic. 



