96. CONVOLVULACE.E. [11. Ipomcea. 



Var. cochleata, var. nov. (var. macra, Clarke?). 



Steins stoxiter, tAvining, with 2 or more raised lines and usually 

 twisted, glabrous. Lower leaves often o*o" by 3'5" ovate or ovate- 

 oblong acuminate, shallowly cordate, sometimes slightly repand, 

 otherwise entire, glabrous, or very slightly puberulous on nerves 

 above, petioles 15-2o" glabrous, upper leaves gradually smaller and 

 more oblong, and petioles proportionately shorter. Flowers Avhite in 

 raany-fld. cymes 2-3" long, sub-racemose on its branches. Peduncles 

 1-2" glabrous. Bracts linear or subulate -1- -12". Pedicels -B-'S". 

 Calyx pearly white, succulent, 3" or "-l" in fruit, outer sepals concave 

 ovate, aristulate, or with a small cusp, inner narrower, margins thin 

 or scarious. Corolla, etc., much as in the type, sometimes only 1" 

 long. 



Usually near rivers and sti-eams. Siiiyblium, railier common! Manljhum ! 

 Palamau! An^ul, common I Fl. Feb. -April. Fr. May. Evergreen, new shoots 

 appear in June. 



Juice slightly milky. Stems tough. L. with 6-9 strong sec. n., lowest 1-3 near 

 base, tertiaries rather strong on the older leaves, upper leaves often more mem- 

 branous and mucronate. 



The flowers close in the evening as in many other species of the genus. They 

 oft.n do not open till noon. 



18. I. petaloidea, Cliois. Syn. Merremia crispatula, Praiu ; Con- 

 volvulus crispatulus. Wall. Cat. Tlie name crispatulus does not, 

 however, appear to have been published prior to petaloidea, 

 Wallich's catalogue not being publication. 

 A climber, often large and shrubby, l^ut sometimes flowering when 

 quite small, stems with 2—1 raised lines or narrow Avings, glabrous. 

 Lower leaves ovate, often attaining 7" by 5-5" or more, with shallowly 

 cordate, retuse or rounded base, and 2-3" long petioles, upper leaves 

 ovate-lanceolate to lanceolate-oblong lo-3" long, with petiole d-7", 

 all glabrous, and Avith characteristic reddish strong midrib and seen., 

 and usually strong cross tertiaries. Flowers more or less yellow 

 (sonaetimes white ?) in 1-many-fld. rather dense cymes, with small 

 linear very caducous bracts •2-25" long. Flowers easily distinguished 

 from those of cymosa by the sepals being -Q-S" long and by the 

 corolla being densely hirsute except on the small basal tubular 

 portion. Capsule about "5" ovoid. Seeds minutely velvety Avith 

 subvillous margins. 



Ranchi ghats! Manbhum, Campbell] Hazaribagh. IJ'ood [ Behar, Yurz I 

 Angul ! Fl. March-Sept. Perennial. New shoots in June. 



Leaves very rounded, emarginate or obtuse and mucronate at the apex, rarely 

 the upper ones somewhat acuminate, glabrous and somewhat glaucous beneath, 

 mill-rib shining, strong sec n. 6-9, of which 2-A close to the base. Fetioles often 

 with two narrow wings or crisped margins on the upper side. Peduncle glabrous 

 or closely pubescent. Pedicels •5-"8'', somewhat thicker upwards. Outer sejials 

 ovate or broadly elliptic concave acute or obtuse, sometimes with a minute apiculus. 

 Corolla 1-75-2 ' long. Capsule rather shorter than the calyx, papery, 2-celled with 

 4 lanceolate-oblong valves. 



Var. pauciflora, Clarice. 



A very depauperated form with stems from a woody rootstock, not 

 climbing. Leaves oblong to linear or oblong-lanceolate 1-1*5", with 

 Aveak sec. u. and short jDetiole. Peduncles only 1-, rarely 2-fld. 



599 



