TRIANDEIA DIGYNIA 



143 



i^roUa involute, Imiry at the base. Jlwns scabrous ; the intermediate 



one the longest, but all twice as long as the coi'olla ; the two lateral 



ones nearly divaricate. Anthers dark purple. 



\\hite. 



Seed oblong- 



Stigmas plumose^ 



Grows in poor, sandy soils Very common. 

 Flowers September — October. 



Long-awned Arhlida* 



5. Lanosa. Muhl. Cat." 



A. panicula erecta, ap- 

 pressa : floi ibus racemo- j ed 

 sis ; calyce corolla longi- | calyx longer than the co- 

 rolla; sheaths of the leaves 



Panicle erect, appress- 

 ; flowers in racemes ; 



ore 



vaginis foliorura la- 



natis. 



E. 



woolly. 



Root perennial,- cespitose. Stem 2 — 4 feet high, terete, hairy 

 near the base, glabrous towards tlie summit. Leaves about a foot 

 long, 2 — 3 lines wide, nearly glabrous underneath, the upper surface 

 nairy, and with the margins scabrous; sheaths longer thao the joints, 

 covered with a tomentum that appears parasitical. Branches of the 

 fanicle woolly at base. Valves of the calyx very acute, glabrous, com- 

 pressed, keel finely serrulate ; the exterior valve much longer than 

 tile corolla ; the interior generally longer, sometimes of the same 

 length. Corolla * 2 ? valved ; exterior valve involute, a little hairy 

 at base ; awns expanding, as long as the corolla, the intermediate 

 ^lewhat the longest ; interior valve very small, ovate, flat, greenish 

 Rectories 2, obovate. Anthers very long, dark purple. Stigmas 

 plumose, dark purple. 



_ In habit very similar to the preceding, from which it diiffers In 

 ^7.e, being every way larger, in the proportionally longer calyx, 

 Jorter awns, and the woolly down with which the greater part of 

 ^fle plant is covered. 



.\KDROPOGON 



Flores polygami 



mati J 

 dito. 1 



alter 



pi 



p^Ios.rariusneutrOjped- 



iciUato, mutico. 



Per 



Flowers polygamous, 

 by pairs ; one hermaph- 

 rodite, sessile ; the other 

 male, or more rarely neu- 

 tral, on an unawned ped- 

 icel. 



'Qterior V ^^ ^^^ ^^^ species of this £reniis have, if closely examined, a 



valve as long as the gcrin, which it assists in covering'. 



sir. all 



-% 



