64 cxx. PODOSTBMONACE.E. (J. D. Hooker.) [Hydrobryum. 



2-sexual, each enclosed in a sessile membranous sheath. Perianth 0. 

 Stamens 2, filaments united below ; staminodes 2, linear. Ovary ovoid, 

 2-celled ; stigmas 2, subsessile, broad, flat, spreading, crested or toothed, 

 deciduous. Capsule long-pedicelled, ovoid ; valves equal 5-ribbed. 



K. Oriffithii, Tut. in Ann. Sc. Nat. Ser. 3, xi. 104, and Monogr. 

 Podost. 141 ; Wedd. in DC. Prodr. xvii. 67. Podostemon {Grifnthii, Wall, 

 mss. ; Griff', in As. Res. xix. 105, t. 17, and Ic. PI. As. t. 541, f. 2, & t. 544. 

 P. Griffithii, Gardn. in Calc. Journ. Nat. Hist. 1850, 40, 41. 



KHASIA Mrs., on rocks in streams, alt. 2-3000 ft., Griffith, J. D. H. % T. T. 



Plants consisting of small coriaceous green frond-like lobed patches about 1 in. 

 broad adhering firmly to stones, with buds irregularly scattered over the surface ; 

 flowering buds of 6 distichously imbricating leaves about T ' 5 in. long, the lower of 

 which have often filiform tips. Spathe about ^ in. long. Stamens as long as the 

 ovary ; anthers oblong ; staminodes with subspathulate tips, appressed to the ovary 

 in bud. Ovary subglobose ; style very short, stigmas cuneate. Capsule oblong- 

 lanceolate, valves delicately ribbed. 



3. FODOSTEITCON, Michaux. 



Herbs of various habits. Pedicels scattered and adnate to the stem or 

 in terminal or lateral very short branches which are naked or scaly at the 

 base. Flower 2-sexual sessile in a little spathe, with 2 linear staminodes at 

 the side of the staminal column. Stamens 2, filaments united below. Ovary 

 ovoid, 2-celled; styles short linear subulate or* ovate acute. Capsule long- 

 pedicelled, ovoid, or ellipsoid ; valves 3-5-ribbed, persistent or one deciduous. 

 Species about 20, American, Madagascarian and Indian. 



Sect. I. Dicraea. Stems branched, floating. Flower-buds few, lateral 

 on the branches. 



1. P. dichotomus, Gardn. in Calc. Journ. Nat. Hist. vii. 165 ; 

 stems dichotomously branched compressed floating, flowering branches 

 elongate flexuous, flowers distichously alternate on short leafy branches, 

 sheath of connate leaves the lower of which are scale-like the upper subu- 

 late, capsule ellipsoid. Dicraea dichotoma, Tul. in Ann. Sc. Nat. Ser. 3, xi. 

 101, and Monogr. Podost. 119, t. 9, f. 1. ; Wedd. in DC. Prodr. xvii. 69. 



DECCAN PENINSULA, in streams of the Western Ghats. 



P. dichotomus proper; stems slender flexuous and angled. Dicraea dichotoma, 

 Tul. in Ann. Sc. Nat. Ser. 3, xi. 100, and Monogr. Podost. 114; Wight Ic. t. 1916, 

 f. 2. Nilghiri Mts. ; in the Pycarrah River, Wight. 



Var. Wightii, Wedd. 1. c. ; steins and branches shorter broader more flexuous, 

 leaves subulate, flowers more numerous. P. Wightii, Gardn. 1. c. ; Wight, Ic. 

 t. 196, f. 3. Dicrsca Wightii, Tul. II. c. Nilghiri Mts. ; in the Pycarrah River, 

 Wight. 



Var. longtfolia, Wedd 1. c. ; habit ofvar. Wightii, but leaves longer only born on 

 the lower buds. Dicraa longifolia, Wight 1. c. 1916, f. 4. Malabar, Johnson, 



Var. rigida, Wedd. 1. c. ; stems and branches stouter more rigid flowering through- 

 out, leaves all scale-like and connate into a tubular 2-fid sheath. P. rigidus, 

 Gardn. I. c. Dicrraa rigida, Tul. II. c. ; Wight Ic. t. 1916, f. 5. Nilghiri Mts. ; iu 

 the Pycarrah River, Wight. 



2. P. stylosus, Bentti. in Gen. PI. iii. 112 ; stems very long branched 

 compressed margins floriferous, leaves 4 distichously imbricate inner obtuse 

 subcuspidate sheathing the spathe, stigmas pubescent equalling or exceeding 



