214 JOURNAL, BOMBAY NATURAL HIST, SOCIETY, Vol. XXVI. 



Habitat: Jaisalmer : Devikot, November 1917 ( Blatt. and Hall. 

 3341 I), near Devikot, November 1917 (Blatt. and Hall. 3342!, 

 3313!), Viiijorai (lilatt. and Hall. 3344! ) ; Jodhpur: Kotda near 

 Sen (Blatt. and Hall. 3345 ! ), near Badka on wet ground (Blatt. and 

 Hall. 3346 ! 3347 ! ). 



5. Ammannia senegalensis, Lara. 111. I (1791) 312, n. 1553, t. 77, f. 2 ; 



Koehne in Engl. Bot. Jahrb. I (1880) 255, in Engl. Pflanzenr. IV. 



21b (1903) 52. 



Stem 8-35 cm. long, erect or ascending, rarely prostrate and rooting, 

 8ub-4-gonous, Leaves 7-50 mm. long and i'5-13 mm. broad, oblong 

 or oblauceolate or aublinear, mostly obtuse, the lower ones cuneate 

 at the base, the upper ones rotund or subcordate, rarely all 

 auriculate cordate. 



Dichasia 1-3-many-liowered, distinctly peduncled, the central pedicel 

 reaching up to 10 mm. Calyx in flower 1-1-5 mm. long, in fruit 

 semigl )bo3e, cornua minute or obsolete. Petals 4, small or absent. 

 Stamens 4. Capsule l'5-2'5 mm. in diameter. 



Distribution : From Senegambia to S. Africa, East Africa, to Aby- 

 ssinia and Lower Egypt, India. 



Key to the forms : 



. A. Dichasia lax, central pedicel 3-10 mm. long. 



1. Stem usually diffusely branched at the base. Forma a. 



2. Stem shortly branched above the middle. . Forma b. 

 B. Dichasia dense ; central pedicel not more than 



4 mm long . . . . . . . . Forma c. 



Forma a. difus a, Koehne in Engl. Pttanzenr. IV, 216 (1903)52. — 

 A. diffusa Willd.Enum.l (1809) 169; DC. Prodr. 111(1828)79.-^1 

 filifornis DO. in Mem. Soc. Gen. Ill (1826) 95, Prodr. Ill, 77. 

 Occurs in Senegambia and Lower Egypt, not in India. 

 We have seen a specimen. It has very long straggling branches 



from the base, large thin leaves and few-flowered cymes ; peduncles 



of medium length, pedicels long. 



Forma b. salsuffinosa, Koehne 1. c. — A. sahwjinosa Guill. et Perr. Fl. 



Seaeg; I (1830-33) 302; Hiern ia Oliv. Fl. Trop. Africa II (1871) 477. 



Occurs in Senegambia from where we have examined a specimen. It 

 is a weak suberect plant with very slender branches, meeting the 

 stem at right angles. Cymes few-flowered, its branches filiform. 



Forma c. indica, forma noe. Erect or suberect, up to 20 cm., simple or 

 sparingly branched near the base. Leaves up to 30 mm. long and 4 

 mm. broad, subacute. Calyx 8-ribbed. Petals present, 1 ram. long, 

 rotund-ovate. (In formalin the raucilage of the ovaries comes out in 

 large masses and the formalin is stained bluish- purple). 

 Habitat: Bombay Presidency : Khandala, November 1916 (Blatt. and 

 Hall. No. 3349!, 3350!). Igatpuri (Blatt and Hall. No. 3351!), 

 Poona (Blatt. and Hall. No. 3352 ! ). 

 In the Poona specimen the stem is ascending, slender, simple. The 

 calyx has a pinkish hue and 8 conspicuous green nerves. Capsule 

 purple. The Igatpuri specimen is 8 cm. high, the stem is simple, the 

 le^ives acute, hardly auricled. 

 There is another specimen from Poona (Aug. 1895) in the Herbarium of 

 the Bom. Nat. Hist. Soc. on a sheet of Ammannia raultifiora. It is 

 much more luxurious, 17 cm. high, slightly branched, branches 

 slender, patent. Leaves up to 42 ram. long and 5 mm. broad, thin, 

 acute, attenuate or auriculate at the base. 



