Naias CLXX. NAIADACEEZ. (J. D. Hooker.) 569 
to the inner perianth, apiculate or cuspidate, l-4-celled. Fem. perianth 0, 
ot hyaline and adherent to the carpel. Carpel 1, sessile, l-ovuled ; stigmas 
slender; ovule basilar, erect, anatropous. Achene oblong. Seed 
i ane very thin ; embryo straight.—Species about 10, temperate and 
ical. 
The Indian species of this genus require a very close examination, which I regret 
&y I have not materials in flower and fruit sufficient to enable me to undertake. 
. LS. major, A//. Fl. Pedem. ii. 221; stem terete toothed, leaves 
fo almost pinnatifidly toothed, teeth triangular, base hardly dilated, 
nes solitary, anther 4-celled. Kunth Enum. ii. 112; Nees Gen. FI. 
ES ul. t. x.; in Linnea, ix. t. 7, and x. t. 1; Boiss. Fl. Orient. v. 
- N. fucoides, Griff. Notwl. ii. 184; Ic. Pl. Asiat. t. 251, f. l. N. 
mancata, Del. py. Egypt. 281. N. spinosa, Ham. in Wall. Cat. 5182. 
pe oughout India, in fresh and brackish water, ascending to 8000 ft. in Western 
ÜEYLoN.—DisrRrB. Europe, Asia, Africa. . 
tem terete, branched. Leaves 3-1} in., teeth 4-8 on each side, dorsally spinous ; 
th with rounded entire sides. Flowers diccious; invol. of male oblong, 2-3- 
* Carpel oblong, stigmas 2-3, filiform. Achene 3';-$ in. 
he &raminea, Del. Fl Egypt. 282, t. 50, f. 3; leaves narrowly 
“ar or subulate acuminate flaccid acutely many-toothed, basal auricles 
atthe nceolate toothed on both margins, flowers fascicled moncecious, 
agus Peeled. Kunth Enum. iii.115; Boiss. Fl. Orient. v.28; A. Braun 
ly. 7^ Journ. Bot. ii, (1864) 278, f. 5. N. seminuda, Grif. Notul. iii. 
td le, Pl, Asiat. t. 251, f. 2, and t. 253, 254. N. semistipula, Balb. Fl. Ticin. 
Pe outlinia alzanensis, Pollin. Fl. Veron. iii. 49. Fluvialis indica, 
"Te Wall, Cat. 5183 B, 
pe nsbout INDIA in still fresh water, and CEYLoN.—DisTRIB. the Old World 
— 1-2 ft. Leaves 2-1 in., usually whorled, broader, more transparent and 
acutely toothed than is N. minor. 
SH, minor, All. Fl. Pedem. ii. 221; leaves very narrowly linear 
nj. ely toothed basal auricles rounded or truncate toothed rarely acute 
113 y e, flowers fascicled moncecious, anther l-celled. Kunth Enum. iii. 
Aa vi Gen. Fl. Germ. iii. t. x.; Boiss. Fl. Orient. v.28. N. dichotoma, 
I pj. Ind. iii. 749. N. ternata, Rozb. ez Griff. Notul. iii. 183; Griff. 
and : Asiat. t. 252. N. indica, Cham. in Linnea, iv. 501. Caulinia indica, 
slg Déif, Willd. in Mem. Acad. Berl. (1798) 89. C. indica, Wall. Cat. 
; n part, 
Fej, Shout INDIA and Crrton, in still sweet water.—DrisTRIB. Old World 
Më very slender, much branched. Leaves spreading, or the upper recurved, 
more » hardly J, in. broad, green or brown when dry.—There may be two 
ge i ^ in India under the above name. The other plant under Wallich's 
ara, 
tent N. falciculata, A. Braun in Seem. Journ. Bot. ii. (1864) 278, f. 4; 
the inner , “eaves as in N. minor, but auricles falcately incurved entire or 
Map Margin entire the outer toothed. 
ath at Tuticor een, Wight.—D1sTRIB. Philippine Islands. 
| grea 
delt doubt this being distinct from N. minor, amongst numerous specimens 
wa) find some with basal auricles very like those figured by Braun as falci- 
