THE CYPERACEA': OF THE BOMBAl PRESIDENCY. 201 



I 



1 . S. artiCUlatUS, Linn. Stems tufted, thicker than a lead 

 pencil. Heads (see h) f in. Spikelets (see h)\ x 5. Nut finally 

 black triquetrous transversely rugose (see h). 



Very common throughout the Presidency, in the margins of tanks. 

 { Africa, Philippines, Australia). 



(6) Thicker and taller. Heads up to H iu. Spikelets up to 



nearly 1 inch and thicker than type. Nut smooth, a little larger 



than type. 



Same distribution as the type in the Presidency. I doubt whether 

 this is to be regarded as a variety or not. With the extra development 

 of all parts of the plant, the outer cells of the nut presumably have to 

 expand with the result that the corrugations are lost. 



2. S> mUCronatUS, Linn. Same size and habit as the last. 



Differences as clavis. 



Rare. Prantij, Ahd. Dist. (Herb. Sedgwick). Yellapur (Herb. Talbot). 

 (Warm parts of the world except America). The plant is fairly common 

 on the Nilgiris. 



3. S. erectUS, Voir. 18 in. high. Stems about ^ in. thiuk 

 at most. Tufted; rest as clavis. 



Marshes and ricefields apparently only in N. Kanara. (Most warm 

 regions). 



4. S. quinquefariUS, Ham. As clavis. Nut transversely 

 wrinkled. Much smaller than !S. articulatns and can be distingui- 

 shed from the next bj^ the flaccid spikelets with loose glumes. The 

 colour of this species is golden yellow, of the next green and white. 



In ricefields. All parts of the Presidency, but pre-eminently a nor- 

 thern plant, and therefore rare in the south, but common in Gujarat and 

 northward into the desert. (Central Asia, Transvaal, North India). 



5. S. SUpinUS, Linn. As clavis. See also last sp. 



Throughout the Pre8ideIlCJ^ Not so common as the variety. (Almost 

 cosmopolitan) . 



Var. uninodiS, Clarice. Inflorescence broken up into single 

 or clustered spikelets on rays {\ — \ in.) of a quasi-umbel. 



Commoner than the last. 



Note. — This variety is of very doubtful validity. All intermediate 

 stages occur. 



6. S. COrymbOSUS, ^/^C7/v^r'. Tall, 3 ft. Inflorescence compound, 

 as clavis. Nut trigonous (rather obtusely so), black, nearly smooth, 

 with a pyramidal apex. 



Clarke and Cooke both describe the species as devoid of bristles, but 

 the available specimens all show that most nuts have three bristles of 

 unequal size and various shape?. They approach the bristles of litoralis. In 

 one or two cases the bristle has a lateral hyaline wing. 



Apparently scattered through the Presidency, but rather rare. (Scatter- 

 ed throughout India, Madagascar). Available at Mt. Abu. 



26 



