3 1 2 Commelinacece, {Cyanotis,. 



naked ; capsule -j o-v i"-) oblong, trigonous, truncate, mem- 

 branous, nearly glabrous; seeds ^V i"- long, trigonous, striate, 

 and with 2 large pits on two of the faces, black. 



Low country ; a common weed. Fl. April ; blue. 

 Also in India, Burma, Malaya, Mauritius, Trop. Africa. 



2. C. obtusa, Trim. [Plate XCIV.] 



C. arachnoidea, Clarke, var. oblnsa, Trim, in Journ. Bot. xxiii. 266, and' 

 Syst. Cat. 95. 



Fl. B. Ind. vi. 386 {C. aracJmoidea in part). 



Whole plant, more or less clothed with white cobwebby wool ; 

 stem 1-2 ft. long, very stout, with erect barren and trailing 

 flg. shoots, the latter given off from the lower axils, com- 

 pressed below, cylindric upwards, intcrnodes about \\ in.; 1. of 

 erect barren shoots many, distichous, closely placed, 9-10 by 

 i^ in., curved, dorsally rounded, obtuse, subapiculate, slightly 

 floccose beneath and on the margins, thickly coriaceous, 

 bright green and subglaucous above, purplish beneath ; 1. of 

 flg. shoots 3 by \ in., oblong, obtuse, apiculate, glabrous above,, 

 slightly floccose beneath, often deep red-purple, sheath slightly 

 cobwebby; cymes \-i in., axillary and terminal, sessile or 

 subsessile ; bracts short; • bracteoles \-\ in., dimidiate-ovate- 

 lanceolate, falcate or nearly straight, acute or acuminate; sep. 

 \ in., lanceolate, acuminate, cobwebby ; tube of cor. as long 

 as the Sep., lobes ovate-spathulate; fil. and style both bearded 

 and fusiform towards the tip; capsule jV '"•> oblong, tip 

 bristly; seeds granular, obscurely pittted. 



Rocky places in low country ; very rare. Summit of Doluwa Kande^ 

 near Kurunegala. Fl. Nov. ; bright pale violet-blue. 



Endemic (?). 



Further observation of this plant convinces me that it is distinct from 

 C. arachnoidea of Clarke, but it is included under it in Fl. B. Ind., which 

 does not quote my name, as a var. obtusa. — Trimeti. 



After a careful examination of the specimen and drawing in Herb. 

 Peraden., and comparison with specimens of C. aracJinoidca., I am disposed 

 to share Mr. Clarke's opinion, and that this may be referable to a very 

 large form of C. arachnoidea. Much of the description gi\'en al)ove is 

 iVom notes by Dr. Trimen.— J. D. H. 



3. C. tuberosa, Schidtes f. Syst. vii. 1 1 53 (1830), var. adscendens^ 



Clarke, Mon. 249. 



Trim, in Journ. Bot. xxiii. 173, and Syst. Cat. 95. Clarke, Mon. 249. 



Fl. B. Ind. vi. 386 (not given for Ceylon), Wight, Ic. t. 2087 {C. 

 sannentosa). 



Stem 6 in. to 3 ft., stout or slender, suberect or procum- 

 bent and creeping below, more or less hirsute ; roots of fleshy 

 cylindric fibres; 1. sessile, 6-10 by \-\ in., upper distant, or in 

 distant fascicles, falcate, shorter, often purple beneath, linear 

 or ensiform, villous, sheath of radical i in. long, glabrou.s, or of 



