260 THE JOURNAL OF BOTANY 



Sepals triangular acuminate, cuspidate, densely hairy outside, "5 in. 

 long, "25 in. wide at base. Corolla bright yellow, 3 in. wide. 

 Petals large ovate, - 5 in. across. Capsule obconic, densely softly 

 hairy and crowned by the large sepals - 9 in. long, "25 in. through at 

 the top. Seeds ellipsoid, not grooved, red. 



Sab. India: Wynaad, swamps at Kalpatty (Beddome 3149); 

 Nilgherries, Devala {Gamble); Ceylon (Thwaites 3297) — I saw it 

 by the edge of the Kandy Lake many years ago ; Singapore, 

 Balestier (Ridley). 



This, the finest of our species, can only be confused with J. vil- 

 losa Lam., from which it is readily distinguished by its large trian- 

 gular long pointed sepals, very large flowers, and obconic capsule. 

 v\ J 



ON COLLECTING LINEAE-LEAYED AQUATICS. 



Br W. H. Peaesall. 



[The following notes appear in the recentby-issuecl lleport of 



the Watson Exchange Club, and are here reprinted by permission 



. of the editor, Mr. H. S. Thompson, in order that they may obtain 



that wider circulation to which their usefulness seems to entitle 



them. — En. Journ. Box.] 



''Dredging. The most interesting of these species are usually in- 

 visible from the surface, and grow only on the finest and softest muds 

 at depths up to twenty feet. Hence the necessity for a dredger. 

 The dredger is thrown out and the boat rowed on a few strokes to 

 obtain sufficient "drag" before hauling in. This is done slowly and 

 uniformly so that the hooks hold the bottom and uproot entire 

 plants. The best results are obtained by dredging from the deeper 

 water to the shore — i. e., up the slope — rather than in the contrary 

 direction. 



" When botanizing on land it is always advisable to carry a long 

 piece of string in the pocket. A large stone attached to the end of 

 this will provide means whereby species growing out of reach in 

 water may be readily secuued. 



"Floating-Out. After removal from the water the plants must 

 be kept wet until you reach home. My own collection is usually done 

 from a boat, and the plants are put at once into my vasculum with 

 water at the bottom and kept shaded as far as possible during the 

 rest of the day. Linear-leaved aquatics placed in a dry vasculum 

 and left exposed to direct sunlight will be irretrievably ruined in a 

 short time. In the absence of a vasculum the plants should be 

 placed under the stern seat in the water usualfy found there, and 

 upon landing rolled in damp dock- leaves or moss. At home the plants 

 are put at once into a plentiful supply of water and may there be left 

 until next day. If, however, they are to be sent to a referee they 

 must be posted same day in a tin quite full of damp moss and 

 aquatics. 



"For mounting I use zinc trays (18" x 11" X 3"), but any large 

 vessel full of water will suffice. Place the sheet of white mounting 



