66 (iK]^A^•IA^K.^^. (cncuAxiuM rAMii.v.) 



Okdkk '20. LIMANTIIACKyE. (T imantiiis Family.) 



Low aiimial lifibs, with alternate pinnately divided leave.-<, and sol- 

 itary axillary flowers. — Sepals valvate, persistent. Petals convolute, 

 withering-persistent. Stamens twice as many as the sepals. Ovaries 

 distinct, willi a single erect ovule, heconungrugose-tuberculate achenia 

 at nialurity. Seed without alliuiiien. 



1. FLCERKIA, WilUl. 



Sepals 3. Petals 3, oblong, onti 10. Stamens 6. Ovaries .3, united at base 

 to tlio central axis. Style 3 cleft. Acbeiiia globose. Cotyledons thick. 

 Radicle inferior. — A small tender decumlient annual, with 3 - o-lobed leaves, 

 and small white ])eduncled flowers. 



1. F. proserpinaeoides, Willd. — Marshes and sliady banks. Ten- 

 nessee. May - July. 



Okder 30. GERANIACEiE. (Geranium Family.) 



Herbs or shrubby plants, -with tumid joints, alternate or opposite 

 palmately lobed stipulate leaves, and hypogynous decandrous flow- 

 ers. — Sepals 0, imbricated in the bud, persistent. Petals 5, convo- 

 lute in the bud, deciduous. Stamens mouadelphous at the base ; the 

 5 exterior ones shorter and often sterile. Ovaries 5, 2-ovuled, and, 

 with the persistent styles, adnate to an elongated central axis, from 

 which they separate elastically at maturity. Seed solitary, without 

 albumen. Embryo convolute. 



1. GERANIUM, Tourn. Cranesbill. 



Flowers regular. Stamens perfect, tlie inner ones with a gland at the base. 

 Styles at maturity separating with the 1-seeded carpels, and coiled upward, 

 the inner face naked. — Herbs. Stems forking. Leaves palmately lol)ed. 

 Peduncles 1 -3-flowered. 



1. G. maculatum, L. Peronnial, erect, hairy; leaves . 5 - 7-parted, the 

 divisions acutelv lobed and toothed; peduncles 1 - 2-flowered, the terminal 

 ones often umbellate ; petals large, entire, 2-3 times longer than the oldong 

 awned sepals. — Open woods in the upper districts. A])ril-May. — Root 

 tuberous, vei-y astringent. Stem 1*^-2° high. Flowers purple, 1' wide. 



2. G. Carolinianum, L Annual, generally prostrate, pubescent; 

 leaves 5-7-parted, the narrow divisions ol)tusely lobed and toothed ; pedun- 

 cles 2-flowered ; petals emarginate, as long as the ovate awned sepals. — 

 Waste places, common. March -April. — Stems forking, 6' -18' long. 

 Flowers pale purple. 



