570 CLXX. NAIADACEE,. (J. D. Hooker.) [Waias. 
INDETERMINABLE SPECIES, 
N. TENUIS, A. Br. (not Z. tenuis, Reut. Cat. Jard. Gener., 1854) is a plant 
from Behar alluded to by Magnus in his “ Beitrag. Gatt. Naias," Vorwort, p. Vi, 
and refers probably to a form of N. minor as above diagnosed. 
N. HETEROMORPHA, Griff. ew Voigt Hort. Suburb. Calcutt. 694. A Serampore 
specimen so named in Herb. Kew, by Griffith, has a very long laxly leafy stem, the 
long toothed leaves have no auricles, or most minute toothed ones. It is not in 
flower or fruit. . 
N. RIGIDA, Griff. Notul. iii, 181. I cannot identify any Indian species with 
this. Itis a native of Serampore, described as blackish green when dry with fleshy 
rigid leaves, Some specimens included under N. minor answer to the colour. 
7. CYMODOCEA, Konig. 
Submerged marine plants; rootstock rigid, jointed, creeping. Leaves 
oblong or linear; sheaths stipular. Flowers axillary, uni- or bi-sexual, 
in membranous sheaths. Perianth 0. Mare FL. Anthers 2, elongata, 
connate, stipitate, slits extrorse; pollen confervoid. FL. FEM. Carpels 2, 
subsessile, ovoid, compressed, l-ovuled; style short, stigmas, subulate 
recurved; ovule pendulous, orthotropous. Fruit of 2 ovoid coriaceous Ke 
woody and externally succulent carpels. Seed pendulous; testa thick; 
embryo inflexed.—Species 4 or 5, Indian and Pacific Oceans. vt 
As this sheet was parsing through the press, I received from Dr. Trimen 2 list 2 
the Ceylon Halophytes known to him, and in which I find Cymodocea serrulata (true 
and C. australis. And amongst the Zydrocharidec, there are to be added at p- 
of vol. v., Halophila Beccarii, Asch., and Thalassia Hemprichii, Asch. 
L C. ciliata, Ehrenb. ex Aschers. in Sitzb. Ges. Naturf. Fr. Berl. 
(1867) 3; in Linnea xxxv. 162; leaves 3-6 by 3-4 in. linear falcate, tp 
rounded ciliate-serrulate. Boiss. Fl. Orient. v. 93; Benth. Fl. Austral. - 
178; Aschers. in Sitzb. Bot. Ver. Brandb. (1882) 98. Thalassia ciliata, 
Kön. Ann. Bot. ii. 97; Kunth Enum. iii. 190. Posidonia serrulate, 27^ 
Enum. 333. Zostera ciliata, Forsk. Fl. Aigypt. Arab. 157. 
ANDAMAN Istps., Prain. CEYLON, Gardner, Harvey.—DistR. of the genus. nd 
Stem or rhizome 3-12 in., woody, branched, covered with annular scars. 
frt. unknown. 
2. €. serrulata, Aschers. & Magn. in Sitzb. Ges. Naturf. P v. Bert 
(1867) 3; leaves 4-6 by 1-1 in. linear nearly straight, tip entire OT x 
culate. Posidonia serrulata, Spreng. Syst. i. 181. 
CEYLON, Thwaites (C.P. 3056).—DısTRIB, of the genus. 
I have seen no Ceylon flowering or fruiting specimens. 
3. C. iseetifolia, Aschers. l.c.; in Linnea, l.c. 163; and in Nuot. 
Giorn. Bot. ii. 182 ; stem short, leaves terete fleshy grooved tip Sech, 
Boiss. Fl. Orient. v. 22; Benth. Fl. Austral. vii. 178. C. sequorea; A" 
Enum. iii. 118 (excl, Syn.) ; Thw. Enum. 333. 
SOUTH CARNATIC; at Tuticoreen, Wight.’ CEYLON, Harvey, 
Indian Ocean. 
Leaves 3-5 by 25-7; in., glaucous. Flowers in dichotomous cymes. 
, 4. C. australis, Trim. Cat. Ceylon Pl. 99; leaves 5-7 byt 
linear nearly straight tip rounded or truncate and 3-toothed. inh. M 
australis, Mig. Fl. Ind. Bat. iii, 227. Diplanthera tridentata, D Arab. 
Ann, Sc. Nat. Ser. ii. ix. 98. Jp an, o Fl. Boypt: 
cxx. and 157. 1x. 98. Zostera uninervis, Fors 
GQlenie.— DISTRI. 
in. 
