24 BOTANICAL MAGAZINE. [Vol. xix. 



Bab. Prov. Mikawa : Takashi-mura (T. Makino \ Oct, 25, 1893, Aug. 

 1899, /. rosea), Takatori-mura iu Aomi-gori (G. Nagura ! Oct. 12, 1899, 

 /. rosea), Horikiri in Atsumi-gori {G. Nagura ! Aug. 2, 1901, /. albijlora) ; 

 Prov. Kadzusa : Ichinomiya (Herb. ! Sc. Coll. Imp. Univ. Tokyo, Aug. 1880 ; 

 T. Makino \ Aug. 11, 1897, Aug. 10, 1901, July 5, 1902, /. albijlora); 

 Ise : Yasudzuka-shinden in Kawage-gori (31. Kawasaki ! Sept. 14, 1903). 



This is sparingly found in the provinces of Owari, Ise, Mikawa, Ka- 

 dzusa, Hitachi, etc., in Middle Japan. There are two forms, one with 

 white flower (/. albijlora), the other rosy flower (/. rosea) ; the latter form 

 is slightly more robust. 



Aldrovanda vesiculosa Linn. Sp. PI. p. 281 ; Kicht. Cod. n. 2226 ; 

 Lam. 111. tab. 220 ; Willd. Sp. PI. I. p. 1543 ; Pers. Syn. PI. I. p. 336 ; 

 Spreng. Syst. Veg. I. p. 956 ; DC. Prodr. I. p. 319 ; Reichb. Fl. Germ. 

 Excurs. p. 711 ; Eoem. et Schult. Syst. Veg. VI. p. 759 ; Ledeb. Fl. Ross. 

 I. p. 262 ; Nyman, Syl. Fl. Eur. p. 229 ; Casp. in Bot. Zeit. (1859) p. 

 117-123, 126-132, 133-139, 141-150, tab. 4-5, et (1862) p. 185-188, 

 201-206, tab. 7 ; Hook. fil. et Thorns, in Journ. Linn. Soc. II. p. 83 ; 

 AVight et Am. Prodr. Fl. Pen. Ind. Or. I. p. 34; Planch, in Ann. Sc. 

 Nat. Ser. 3, IX. p. 304 ; Clarke in Hook. fil. Brit. Fl. Ind. II. p. 425 ; 

 Korsh. in Act. Hort. Petrop. XII. p. 311 ; Makino, Phanerog. et Pterid. 

 Jap. Ic. 111. tab. 38. 



Aldrovanda verticillata Roxb. Fl. Ind. II. p. 112. 



Aldrovanda vesiculosa var. verticillata Darwin, Insect. PI. p. 329 ; 

 Makino, Notes on Jap. PI. XIX. in Bot, Mag., Tokyo, VII. (1893) p. 

 285, tab. 11. 



Aquatic perennial, floating, rootless, weak, diaphanous, green. Stem 

 terete, with many nodes, simple or loosely few- (1-4) branched, foliate 

 throughout, 6-26 cm. long. Leaves numerous, situated on nodes, patent, 

 6-8-verticillate ; whorls approximate, 1^-2 cm. in diameter ; the blade small, 

 cochlear, conduplicate and vesiculose, semiorbicular, with a very minute 

 spinose point (which is the projecting tip of the midrib) at the top, very 

 shortly stipitate or sessile, minutely hairy towards the centre internally, nar- 

 rowly folded and loosely ciliated on margin, 2£-4| mm. long; petiole oblong- 

 cuneate or linear-cuneate, longer than the blade, cellular, 1-nerved, 3-7 mm 4 

 long, 5-6-long-fimbriate (the hairs nearly as long as the petiole and min- 

 utely spinulose except the base) at the tup, in those under the pedicel des- 



