<Si TRlAJfDRlA DIGYNIA, 



J 



m 



S9. DiVERGENs. Miilil. Cat 



P, culmo assurgente, [ Stem assurgent, fragile j^ 

 fragili ; panicula diffusa ; j panicle diffuse ; flowers 

 floribus parvulis, solita- j small, solitary, on very 

 riis, longissime peduncu- | long peduncles. 

 latis. E. 



Uoot perennial. Stem about a foot high, somewhat geniculate and 

 branclie.a^, very brittle. Leaves subulate, 2—4 inches long, glabrous 

 on the under surface, scabrous on the upper, serrulate ; sheaths gla- 

 brous, longer than the joints ; stipules membranaceous. Peduncles 

 setaceous, frequently 3 — 4 inches long, supporting a single flower, 

 sometimes with one or two branches, tinged with purple, scabrous* 

 Cahjx one flowered ; accessory valve subulate ; proper valves lance- 

 olate, slightly ciliate. Corolla a little shorter tuan the calyx. Sri' 

 thevfi nearly white. Stignias purple. 



Grows in very dry, sandy soils, rare. About Beaufort. Dr. Tres*' 

 cott found it also near Charleston. 



Flowers June — August. Long-pediincled Fanicum. 



In a genus so extensive as the Panicum, and where, as in the last 

 section, so strong a resemblance prevails in habit and in the structure 

 of the panicle, it becomes extremely difficult without long culture, to 

 £x the limits of each species, and to mark its appropriate character. 

 A change nf soil aTid exposure, will produce variations in a pla^^ 

 which may deceive the most cautious observer ; and even in species 

 really distinct, the eye often perceives differences which it is noteasj 



to express. 



I have travelled through this genus with more labour than satis- 

 faction, although deriving through the whole of it, the most friendly 

 and valuable aid from the specimens and notes of Dr. Baldvvin. 

 And while I have postponed very many specimens that pernap 

 are real species, I have probably admitted some tlat are ony 

 varieties. I have been unable to subdivide the last section, and marH 

 the divisions by good characters, but to students it may facilitate ti 

 knowledge of this ^enus, to throw into groups the species that ar 

 nearly allied, mark mg after the manner of Salisbury, (Trans. 1^*^' 

 Soc. 6. p. S16S by stops, the degree of affinity. The seventh sccnou 

 includes those that are independent species, and have no close co ' 

 iiexion with each other, or with the preceding sections. 

 1. Latifolium, 4. Scoparium, 6. Barbulatum, 



Nervosum j Pauciflorum, Nitidum. 



Viscidum, . 



g. Amarum 5 Dichotomum; 7. Geniculatum^ 



Vir atum. 



Anceps. 



Scabriusculum. 5. Villosum; Hians. 



Sphjerocarpon ; Dcbilc. 



8. MuUiflorumi Pubescens, 



Ovale, StrigOHum, 



Lauu!^inosum ; Ciliatum, 



Microc^rpon. Ensifolium f 



Divergens. ^ 

 Angu^tifoliunn 



