﻿96 BOTANICAL MAGAZINE. [V oi. xx, 



Nom. Jap. Hime-mimikakigusa (nov.). 



Hob. rrov. Ise {T. Kusano ! Oct. 17, Nov. 13 and 25, 1906). 

 An exceedingly small Utricularia ; this is actually smallest one among 

 the phanerogams found in Japan. 



Utricularia (Lentibularia) dimorphantha Makino sp. nov. 



Perennial ; stems floating, slender, terete, loosely branched, 4-6 decim. 

 long, sometimes with serial shoots, which are slender and bearing scaly leaves 

 above. Leaves all submerged, dense, attaining 4f cm. long, 3 cm. broad, 

 densely dichotomo-divided into very numerous capillary segments, which are 

 glabrous but 2-spinulate at the apex under lens, without or sometimes laxly 

 intersparsed with little obliquely ovoid and very shortly pedicellate utricles 

 (with 2 branched long hairs and a few short hairs at the mouth). Peduncle 

 erect, about 7-14 cm. long including the raceme, without scales, terete, bearing 

 a raceme above and acleistogamous flower at the base. Raceme erect, 

 3-9-flowered, about 1-4 cm. long ; rachis terete ; bract adpressed to and 

 embracing the base of pedicels, semiorbiculato-cordate, acute or acutish, entire, 

 2 mm. long. Flower about 1 cm. across, yellow ; pedicels terete, stout, erect- 

 patent at the time of flowering, but spreading or turned downwards and 

 4-5 mm. long when in fruit. Calyx about 2 mm. long ; lobes equal, orbicu- 

 late, concave, slightly enlarged and not spreading in fruit, the lower lobe 

 sometimes emarginate or bifid. Corolla bilabiate, with a short tube ; the 

 upper lip erect, semiorbiculato-orbicular, subretuso-emarginate ; the lower lip 

 horizontal, a little broader, transversely elliptical, 3-lobed at the apex; palate 

 nearly half of the upper lip in height, oval, emarginate; spur shorter than: 

 the lower lip, straight, ovate-elliptical, retuso-rounded at the apex, directed 

 forwards, 3 mm. long. Stamens 2, as long as the corolla-tube ; filament 

 dilated, enlarged above, sometimes connate in various degree ; anther elliptic- 

 al, 1-celled, dehiscing transversely. Pistil 2 mm. long ; ovary globose, with 

 numerous ovules ; style short, J- mm. long ; stigma dilated, orbiculate, minute- 

 ly ciliated. Capsule globose or hardly depressed globose, smooth, 3 mm. in 

 diameter, very shortly beaked with. a persistent style at the apex, accompany- 

 ed by a persistent calyx, which is scarcely shorter than the capsule and 

 adpressed to it, dehiscing transversely ; placenta globose, foveolate. Seeds 

 numerous, angulate, convex in the face ; testa loose and minutely areolate. 

 Cleistogamous flower small, pedicellate ; calyx as that of the normal flower ; 

 corolla unexpanded, calyptriform ; stamens 2, filament sometimes connate ; 



