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TnlANDRlA MONOGYNIA. ^§ 



Stem naked, 2—3 feet high. Leaves 1 foot long, linear, channelled, 

 labrous, the margins and midrib towards the summit acutely serru- 

 ate. Spikes 2 — 5 flowered, compressed, flowers distichous. Glumes 

 compressed, acute, nerved, keeled, loosely imbricate. Seed obIon<', 

 3 angled, acute at each end, without bristles. ^ 



This plant resembles the M. echinatus. Its spikes however are 

 smaller, and more crowded, tiie flowers on each spike less munerous^, 

 and the heads cylindrical. 



Grows in cultivated land of almost every description. 

 Flowers throuijh the summer. 



3. Echinatus. 



M. culmo obtuse tri- [ Stem obtusely 3 ang- 



quetro, glabro ; umbellis [ led, glabrous ; umbels 



simplicibus; capitulis glo- I simple ; heads globose 

 bosi^ ; spicis lineari-lan- spikes linear-lanceolate; 



ceolatis, suboctofloris [ eight flowered, expand- 



(6—8), patentibus. E. f ing. 



Scirpus echinatus, Sp. pi. 1. p, 304. 

 Kyllingia ovularis? Mich. 1. p. 29. 



Stem naked, 1—2 feet high. Leaves similar to those of M. cvlin- 

 Uncus. Spikes linear-lanceolate, 6—8 flowered, compressed, forming: 

 a perfectly globular head. Vlowcrs in two rows. Glumes acute. Fi* 

 laments 5. StyleSdeh. Seed 5 angled, Vvithout bristles. 



Grows in cultivated land. Very common. 



Flowers through tlic summer. 



f 



SCIRPUS. Gen. PL. 95. 



Gltmi^ paleacese, undi- I Glwnes cliaflfy, imbii- 

 que imbricate. Corolla cate on all sides. Corah 

 0. Seme?i i. \ la 0, Seed 1. 



Spica unica, termi- * Spike solitary, tennis 



nali 



^ f 



Gapillaceus. Mich 



7iaJ, 



sillo 



S. culmo tereti, pu- [ Stem terete, minute 

 j spica ovata, acuta ; | spike ovate, acute ; gUi 

 glumis acutis ; semine mes acute ; seed com 

 compresso, obovato. E. | pressed, obovate. 



Mich. 1. p. 30. 



S. pusiUus, Vahl. Enum. pi. 2. p. 245. Pursh, 1. p, 54, 



'ri/- 



. :v.: 



