74 TRIANDRIA. MONOGYNIA. Scirpus. 



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flower scales or calyx is equally variable, as noticed in the last 

 article, which reconciles the difference observable in the descrip- 

 tions of Haller, Scheuchzer and Lightfoot, just now mentioned. 

 This plant likewise agrees with the Sc* ccespitosus in the upper 

 sheaths of the stalk, assuming the green appearance of leaves. 

 The only remaining difference between them is an observation of 

 Mr. Woodward, that the Sc. pauciflorus grows scattered, never 

 forming a turf. Since writing the above I have been favoured 

 with the following remarks from Mr. Woodward, in support of 

 his opinion, that the plants in question are really distinct spe- 

 cies : " The S. pauciflorus is very different in its habits from the 

 coespitosus, for besides its growing single and not cespitose, the 

 stems generally decline and scatter from each other, instead of 

 being upright and close together ; the stems are also more rigid, 

 of shorter growth, and the flowers fewer, as the name expresses/' 

 If these remarks excite an attention to the subject, it cannot 

 remain much longer in doubt. 







Chocolate-headed Club-rush. Highland mountains. [Elling- 



hara Fens, Norfolk. Mr. Woodward.] P. August. 



acicula'ris. S. Straw cylindrical, naked, bristle-like: spike egg-shaped* 



2-valved : seeds naked, (see) Cyperus acicularis. 



« 



/ 



fhi'itans. S. Straws cylindrical, naked, alternate : stem leafy and 



limber. 



. Diets, h. s.—E. hot. 216-F. dan. 1082-H. ox. viii. 10. 31 



-Scheuch. 7. 20. 



Stem branched, limber, floating, leafy. Branches leafy. 

 Leaves alternate. Fruit-stalks produced in plenty towards the 

 end of the stem and branches, cylindrical, alternate, about 3 

 inches long, with 1 leaf sheathing the lower part. Mr. Robson. 

 Spikes short, of few flowers. Summits only 2. Dr. Smith. 

 Plant from 2 to 8 inches in length. 



Floating Club-rush or Club-grass. Shallow waters on heaths, 

 and in ditches. [Charley forest, in bogs and old gravel pits. 

 Pulteney. — In small rills of water about Newton Cartmell. 

 Mr. Hall. — Salesmoor, near Manchester. Mr. Robson.] 



P. July- 



(2) Spikes several: straw cylindrical . 



lacus'tris. S. Straw, cylindrical, naked: spikes several, egg-shaped, 



on fruit-stalks, terminating. Linn. Calyx fringed, 

 3-cIeft, middle segment awl-shaped. St. 



Var. 1. Involucrum somewhat membranaceous, shorter than 

 the panicle. Spikes rather oblong. Hvds. 



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