TRIANDRIA M0N0GT5TIA. ^5 



-h- 



rachig acitfe, naked. CdyXj exterior valve very small, acute, com- 



pressd, slightly mucronate, the keel serrulate; interior valve 3 times 

 as long, compressed, keeled, mucronate ; the keel most acutely ser- 

 rulate. Corolla^ exterior valve shortest, membranous, compressed, 

 keeled, emarginate, the keel serrulate ; interior valve as lo:)ff as the 

 interior valve of tlie calyx, compressed, but not keeled, membranous, 

 acute. Fi'aments 3, longer than the glumes. Anthers lon^, incum- 

 beat, 2 cleft at base, a little spiral. Styles 2. Stigmas ieatheredi 



Seed oblong, compressed. 

 Grows iu ground occasionally inundated by salt water. 

 Flowers March— August. Rush-like Spartina^ 



White Rush 



i 



2. POLYSTACHYA, 



S. ioliis lato planis, Ion- [ Leaves broad, flat, very 

 gissimis; spicis plurimis, long; spikes numerous, 

 alternis, patentibus ; flo- ] alternate, expanding j 



ribus monogynis. | flowers with i style. 



Traychynotia polystachya, Mich. 1 p. 64. 

 Limnetis polystachya f Pursli, 1. p. o9. 



5feni 5 — 10 feet high, columnar, glabrous. Leaves 1 — Sfeetlongy 

 8—10 lines wide, serrulate, sliglitly channelled, scabrous on the up-* 

 per surf^e, orJabrous on the under ; sheath much longer than the 

 joints, glabrous, the throat hairy; stipules bearded. ^Spikes 10 — 12. 

 From the preceding it differs in its flowers, only in the following par*- 

 culars — exterior valve of the calyx half as long as the interior; ex- 

 terior valve of the corolla obtuse, mucronate, interior scabrous on 

 the back. Style 2 cleft at the summit. Stigmas feathered, white. 



Grows in brackish marshes, sometimes along the margin of salt wa- 

 ter. Near the mouth of Savannah river, common. Paris Island. 



Flowers September, Many-spiked S^artina^ 



3. Glabra. Muhl, Cat. 



S. foliis stricte erectis, I Leaves erect, concave ; 

 concavis ; spicis alternis, I spikes alternate, erect, 

 erectis, appressis ; florU I appressed j flowers with 

 bus digynis. | 2 styles. 



Dactjlis maritima, Walt- p. 7T^ 



'its^'- 



\-. 



