90. CONVOLVULACE.E. [13. Convolvulus. 



stems glabrous or usually hairy. Some leaves often simple, usually acuminate 

 but shape very variable and often broader than long, base 9-nerved, glabrous. 

 Peduncles about as long as the petioles. Sepals •2--3", outer usually smaller, mid- 

 rib excuri-ent as a small awn. 



12. HEWITTIA, IF. Jf A. 



Twinino- usually piibescent herbs with cordate, sometimes 3-lobed 

 leaves and mod.-sized flowers in 1-many-fld. axillary sometimes sub- 

 capitate cymes. Bracts narrow. Sepals unequal, outer much larger 

 than the inner, accrescent in fruit. Corolla campanulate. Stamens 

 included or sub-exsert, filaments dilated at the base, anthers shortly 

 lanceolate. Ovary 1-celled or partially septate, -i-ovviled. Style 

 filiform, stig-mas 2 ovate-oblong. Capsule globose, -i-valved. Seeds 

 glabrous. 



1. H. bicolor, Wight. 



A twiner with pubescent stems, petioles, peduncles and leaf -nerves, 

 somewhat resembling the small form of Iporuoea lurpethuni. Leaves 

 cordate ovate simple" or somewhat lobed, acute or acuminate, attain- 

 ing 5" by 4", somewhat shiny both sides. FloAvers pale yellow with a 

 purple throat, 1-1-2" diam., on 1- (rarely 2-3-) fid. peduncles with 2 

 lanceolate bracts. 



Thickets near watercourses, Singbhum ! Not common. Fl., Fr. Jan.-Feb. 



Leaves sometimes hairy all over beneath, tip sometimes shortly caudate, prmcipal 

 nerves 5-6 palmate, sec. n. of midrib 2-4. Petiole of lower leaves sometimes 3-5", 

 of upper short. Peduncles variable in length, usually short. Bracts lanceolate 

 •25--5", a little below the calyx. Outer sepals fcjliaceous ovate, -o", inner lanceolate 

 or oblong, dry and reticulate in fruit. Corolla liairy or pubescent, shortly o-lobed. 

 Ovary villous. 



13. CONVOLVULUS, L. 



Herbs or undershrubs, erect, prostrate or twining with entire, 

 toothed or lobed leaves. FloAvers of various size and colour, solitary 

 or in several- to many-fid. cymes. Sepals subequal or the outer wider. 

 Corolla campanulate or w"idely funnel-shaped nearly entire, the 5 

 bands on the corolla usually distinct. Stamens incUided, often 

 unequal, filaments with somewhat dilated base, anthers narrow, 

 pollen smooth sometimes furrow^ed. Disc annular or cup-shaped. 

 Ovary 2-celled. Style slender, stigmas 2 filiform to oblong or sub- 

 clavate. Capsule globose, 2-celled, -i-valved or more rarely irregularly 

 breaking up. Seeds glabrous. 



The genus Jacquemontia differs by the stigmas being short, ovate or lanceolate 

 and compressed, and our species Concolculns parvi/Iorus (or Coucolvi(h<i< panieulafua) 

 has been called recently Jacquemontia paniadata. But it appears better to me to 

 keep it in Concolcalu's in consideration of Jacquemontia being essentially an 

 American genus and that the shape of the stigma is somewhat variable in both 

 genera. 



J. coerulea, Choinj, is a very i^retty slender climber Avith cordate 

 leaves and blue flowers with a wide open mouth. In habit not 

 unlike Convolvulus parvifiorus but stigmas are shorter and elliptic- 

 oblong. It is a native of America commonly cultivated in gardens. 



A. Stems several prostrate. Stigmas filiform as long as the style 1. pluricaulis, 



B. Stems twining. Stigmas not as long as the style :— 



Stigmas linear, slender *lo" 2. arcensis. 



Stigmas short, linear -05'', not slender 3. parviflorn^. 



(panicidafus.) 



603 



