Podostemon.~\ cxx. PODOSTEMONACEJE. (J. T). Hooker.) 65 



the ovary, capsule 6-ribbed. Dicrsea stylosa, Wight Ic. t. 1917, f. 2 ; Wedd. 

 in DC. Prodr. xvii. 70. 



MALABAR ; in mountain streams, near Calicut, Johnson. TBAyANCORE ; in 

 streams of the Anamallay Hills, Wight. 



The long stigmas distinguish this species. 



3. P. clone atus, Gardn. in Calc. Journ. Nat. Hist. vii. 188 ; stems 

 long filiform subsimple terete floating below and branches flowering, tips elong- 

 ate leafy flowerless, leaves acicular, flowers distichous in spikes or racemes 

 terminating short branches, capsule ellipsoid*. Dicraea elongata, Tul. in 

 Ann. Sc. Nat. Ser. 3, xi. 102, and Monogr. Podost. 124, t. 9, f. 2 ; Wight Ic. 

 t. 1917, f. 1 ; Wedd. in DC. Prodr. xvii. 70. 



CEYLON; in the Mahawalle Gunga River, below Peradenyia, Gardner. 

 Stems tufted, 12 in.,. clothed with distichous buds; upper buds flowerless, con- 

 sisting of clusters of linear or subspathulate leaves || in. long. ; lower buds of boat- 

 shaped acute keeled leaves connate at the base and enclosing the flower. SpatJie 

 funnel-shaped, mouth 2-fid. Filament stout, equalling the ovary and subulate stami- 

 nodes; anthers oblong. Capsule sessile on the fruiting pedicels, which terminate 

 short leafless branches, 8-12-ribbed ; stigmas ovate, acute. 



4. P. algraeformis, Bentli. in Gen. Plant, iii. 112 ; stems long com- 

 pressed floating simply or dichotomously branched from the base, branches 

 strap-shaped simple or forked obtuse; flowers on the margins of the stem 

 below or branches, pedicel with minute leaves at the base, of which the 

 inner are large and concave, capsule elliptic-oblong 8-ribbed. Dicraea 

 algae formis, Beddome in Trans. Linn. Soc. xxv. 223, t. 24; Wedd. in DC. 

 Prodr. xvii. 70 ; Warm, in Videlsk.. Selsk. Skr. vi. 2, t. 12 ; Trim, in Journ. 

 Bot. xxiii. (1855) 173. 



TRAVANCORE ; on rocks in streams of the Anamallay Mts., Beddome. CEYLON ; 

 near Kandy, Trimen. 



Stems tufted, dark g^reen, f in., like a Fucus ; branches unequal, alternate or 

 clustered. Spathe with a dilated 2-3-fid mouth. Staminodes 2-3, subulate, as long 

 as the ovary. Filaments connate below ; anthers oblong. Stigmas subulate. Mr. 

 Hemsley, who has examined the Ceylon specimens, regards them as intermediate be- 

 tween P. algceformis and Wallichii. 



5. P. subulatus, G-ardn. in Calc. Journ. Nat. Hist. vii. 184; stem 

 short simple or dicnotomous, branches short leafy, leaves amplexicaul dis- 

 tichous elongate-subulate, pedicels short, stigmas subulate-lanceolate. Tul. 

 in Ann. Sc. Nat. Ser. 3,*d. 103, and Monogr. Podost. 135, t. 9, f . 4 ; Wedd. in 

 DC. Prodr. xvii,74>, Wight Ic. t. 1918, f. 1; Thivaites Enum. 222. -P. den- 

 droides, T/iw. mss. 



CEYLON ; on rocks in the Mahawalle Gunga River, near Holnicut. 



Stems stout, rough, 1 1 1 in., attached to stones by a small fleshy depressed rootstock. 

 Leaves 1-2| in., base very broad, with rarely a short stipule on th margin of the 

 sheath. Spathe broadly tubular, 2 4-lobed unequally. Filament much longer 

 than the ovary; staminodes shorter, narrowly linear. Capaule ellipsoid, usually long- 

 peduncled ; valves 8-riWbed, one falling before the other. 



Sect. II. Polypleurum. Stem flat dilated frond-like. Flower-buds 

 scattered or subrnarginal, with few scales. 



6. P. Hookerianus, Wedd. in DC. Prodr. xvii. 74 ; plant an irre- 

 gularly dilated thickish sinuate or lobulate frond with marginal 1-fld. bads 

 of about 6 distichously imbricate ovate obtuse or acuminate leaves, capsule 



VOL. v. F 



