40 DIANDRIA DIGYNIA* 



4—6 



Leaves very lons^ 



scabrous 



engtfi 



Spikes mattered, very closely appressed ; spikelets uniformly 2 flow- 

 ered. Involucrum composea of a few scattered hairs about one third 

 tiie length of the calyx, sometimes entirely wanting. Nerves of the 

 ectlyjc spinous. Anthers^ stigmas^ nectaries and their appendage pur-* 

 pie* B. 



Grows near Savannah* 



Flowers August — Septemben Close -panicUd Erianthus^ 



4. COSTORTUS. 



E. vUlisinvolucrantibus I Hairy involucrum as 

 calyccm jequantibus; val- j long as the calyx; interi- 

 va interiore corollse auri- or valve of the corolla 

 culata; aiista spiraliter auriculated; awn spiral- 

 coiilorta. Baldwin. j ly contorted. 



Stem erect, terete, somewhat scabrous near tlie summit, bearded at the 

 joints. I^atv* long, linear lanceolate, scabrous along the margins, beard- 

 ed at the throat. Panicle ciosel v appressed. Flowers 2 at each joint or 

 bud of the branches, one sessile, the other on a pedicel. Valves of the 

 calyx nearly equal; the exterior acute; the jnterior a little shorter, 

 •hghtlj 2 cleft; both serrulate and having a few long Imirs scattered 

 along the margin. Exterior valve of the corolla membranous, acute, 

 shorter than the calyx; the interior still shorter, awned; the awn is 

 composed by the junction of the two lateral nerves of the valve, ia 

 this species, they meet just above the middle of the valve, leaving the 

 summit deeply two cleft; awn spiral and contorted near its base. 



This 

 from Savannah 



Sitzk growing m damp sods. 



Flowers October. Spiral-awned Erianthus. 



-f Ti^ i**"^® l^** ^P®"^'^* ^■^'■^ certainly united in the E. brevibarl 

 « Michaux, they appear, however, to be sufficientlv distJnr.t. 



JV 



