fO NEOBOT. 



770. Mesodiscus simplex Raf. stem terete 

 solid base subangular few leaved, leaves remote, 

 petiols angular, folioles 3 entire oblong or lan- 

 ceol. acute, middle one acuminate; umbel single 

 involucre none, involucels 2 setaceous, 7 umbel- 

 lules 9-12flore, pedicels unequal, petals obcor- 

 date concave. — Sent me from Alabama, stem 

 slender pedal or more, folioles uncial, last leaf 

 a single linear foliole remote from umbel, flow- 

 ers quite white. — Var. major has stem bipedal, 

 the lower leaf with 5 folioles. 



771. Mesodiscus proliferus Raf. stem te- 

 rete solid, leaves remote, petiols carinate, foli- 

 oles 3 or .5 lanceolate entire very acute, some- 

 times falcate : umbel thrice compound, first in- 

 volucre with 5 linear folioles, second involucres 

 none or one linear, commonly 5 umbellules, 

 7-15flore, involucels 21inear, petals flat obovate 

 scarcely obcordate. — Also from Alabama,leaves 

 gometimes with only 2 folioles, the lower have 

 5 subpinnate. Quite smooth and with white 

 flowers like the last : the triple umbel is a great 

 anomaly. 



772. ^^ AT ARIA R. ombelif. polygamous. 

 Involucre none or 1 or 2 minute, involuces 3-6 

 subulate. Calix minute 5toothed petals equal 

 round obcordate incurved, 5short stamens, disk 

 almost conical, 2 short styles divaricate. Seeds 

 elliptic flat and thin, 5 striated, convexely in- 

 curved, surrounded by a thick fungose white 

 margin over both seeds. Leaves ternate, flow- 

 ers ocliroleucons — united to Peucedanon by 

 Nuttal (who did not see the perfect flowers) 

 which differs by petals oblong, seeds oval wing- 

 ed around, flowers yellow «^'C. Sataria was an 

 ancient name of Peucedanon. A few male 

 flowers are mixt in umbels. 



