136 TRIANDRIA— DIGYNIA. Cynosurus. 



very distinct. Sch rebel* places Spartina in Trtttndria 

 Monogynia ; but a partial, or temporary, combination of 

 the 2 styles of true Grasses is so common, and so vari- 

 ous in species of the same genus, that it is best not to 

 take it too strictly. There can be no reason to change 

 the great Schreber's original name for Limnctis. 



1. S. stricta. Twin-spiked Cord-grass. 



Spikes two or three, erect, with very smooth stalks. Glumes 

 downy. Outer valve of the calyx smallest. 



Dactylis stricta. Soland. in Ait. H. Kew. ed.l.v.X. \ 04. Willd. 

 v. I. 407. Fl. Br. 110. Engl Bol v. 6. t. 380. With. 149. t. 27. 

 Knapp t. 63. 



D. Cynosuroides. Huds. 43. Loefl. It. Hisp.Wo. 



Spartum Essexianum, spica geminfi clausa. Dill in Raii Sijn. 393. 



In muddy salt-marshes, on the eastern coast. 



About the mouths of rivers in Kent and Essex, found by Merret, 

 Buddie, and Sherard. Dillenius. Plentiful in the isle of Shepey. 

 Bishop of Carlisle. At Aldborough, Suffolk. Mr. Woodward and 

 Mr. Davy. 



Perennial. August. 



Rooi creeping, with strong fibres. Whole plant hard, tough and 

 rigid. Stems 10 — 20 inches high, several together, simple, 

 ascending, round, leafy from top to bottom, smooth, jointed. 

 Leaves numerous, straight, spreading, taper-pointed, keeled, 

 channelled, striated, of a dull green, smooth ; involute when 

 dry. Sheaths striated, smooth, very long, investing each other 

 far above their respective knots j their lower part remaining of 

 a fibrous spongy texture, after the upper part and its leaf are 

 gone. Stipula short and jagged. Spikes 2, rarely 3, rising just 

 above the short uppermost leaf, erect, straight, close together. 

 Common stalk simple, angular, with a linear hollow to receive 

 each spikelet, but not jointed. Spikelets imbricated, in 2 rows, 

 lateral, lanceolate, their glumes all more or less downy or silky. 

 Outer valve of the calyx narrow, acute ; inner much broader 

 and longer j membranous and cloven at the top, with a short, 

 thick, horny, intermediate point. Floret solitary. Valves of the 

 cor. less downy, acute, entire, finely striated. Nect. none, as 

 Schrader also observes. Germen lanceolate. Styles combined 

 about 3 fourths of their length. Stigmas slender, prominent. 



50. CYNOSURUS. Dogs-tail -grass. 



Linn. Gen. 30. Juss. 31. Fl. Br. 1 1 1. Lam. t.47. Gcertn. t. 1 . 



Spikelets in pairs; one entirely neuter, of numerous, two- 

 ranked, lanceolate, concave, pointed or awned, empty 



