146 it KM UL1GMM, (TURNERA FAMILY.) 



than tin' pedicels ; calyx flattish ; petals obtusely rhomboidal ; fruit liirsutc. 

 Mountains of Horth Carolina. April and May. (•) 



Order 58. LOASACE^. (Loasa Family.) 



Herbs, commonly armed with bristly barbed and stinging hairs. Leaves 

 alternate, ex>tipulate. Flowers solitary or clustered. — Calyx-tube ad- 

 herent to the 1-eelled ovary, the limb 5-parted and persistent. Petals 5 

 or 10, inserted on the throat of the calyx. Stamens mostly indefinite, in 

 several parcels, inserted with the petals. Styles united. Capsule irregu- 

 larly dehiscent. Seeds few or many, borne on 3 - a parietal placenta?, 

 commonly with scanty albumen. 



1. MENTZELIA, Plum. 



Calyx-tube cylindrical or club-shaped. Petals convolute in the bud. Sta- 

 mens commonly 30 or more, the exterior ones often dilated and sterile. Styles 

 3, united to the middle. Capsule 3-valved at the summit, with 3 parietal pla- 

 centas. Cotyledons broad and flat. — Steins branching. Leaves toothed or 

 sinuate-pinnatitid. Flowers yellow. 



I. M. Floridana, Nutt Leaves deltoid-ovate, toothed, truncate and 2- 

 lobed at the base; stamens about 30; capsule 6-seeded. — South Florida. — 

 Stem 1° high. Flowers small, golden-yellow. 



Order 50. TURXERACE/E. (Turnera Family.) 



Herbs or shrubs, with alternate simple exstipulate leaves, and solitary 

 axillary flowers. — Calyx free from the 1-eelled ovary, colored, 5-lobed, 

 deciduous. Petals ">, inserted on the throat of the calyx, convolute in 

 the bud. Stamens "», inserted into the tube of the calyx below the pe- 

 tals. Styles 8, distinct, simple, 2 -cleft or 2-parted. Stigmas 3 or 6, 

 many-parted. Placenta? .">, parietal. Capsule loculicidally 3-valved, 

 many-seeded. Seeds anatropous, arilled. Embryo in fleshy albumen. — 



Flower- sessile, or on bracted or jointed pedicels. 



1. PIRIQUETA, Aublet. 



Calyx canipanulate. Styles 8, 2-cleft or deeply 2-parted. Stigmas 6, many- 

 parted. Capsule opening to the base into 8 valves, — Herbs with stellate pubes- 

 cence. Flowers on jointed pedicels, yellow. 



l. P. fulva. Hirsute with fulvous hairs, and stellate-tomentose ; stem 



Pimple or Sparingly branched ; leaves lanceolate, obtuse, DOStly serrate or 

 t<»<,tbed. neinlv sessile : pedieeb (at least the upper ones) longer than the leaves, 



