416 DE. A. B. EENDLE— SYSTEMATIC 



become gradually smaller near the edge ; length 2 to 25 mm., breadth at the top 1-5 to 

 2 mm. Intravaginal scales scarcely '5 mm. long. 



Mowers solitary, male and female occurring on the same shoot. Male sessile, 2-3 to 

 2-6 mm. long, about the same length as the protecting leaf-sheath. Spathe ellipsoidal, 

 ending in a cylindrical neck about -5 mm. long, which bears at the mouth numerous 

 pointed spines; perianth fitting closely to the ellipsoidal quadrilocular anther, above 

 which it ends in two thickened lips. Ovary naked, 2-5 mm. long. Stigmas two. Fruit 

 •75 to 2 mm. long. Testa plainly marked with about 30 rows of small subhexagonal 

 pits. 



SoiTTH AiN-DAMAN — Navy Bay Tea Gardens {King, in Herb. Calcutta). 



Distinguished from Najas foveolata by its broad, truncately-rounded sheath, and small 

 fruit. 



20. Najas lacehata, sp. nov. (PL XLI. figs. 132-138.) 



Dioica (?), rigidula, ramis dichotome ramulosis ; foliis ascendentibus linearibus, superne 

 angustatis, planis, adultis a nervo mediano et lineis transversalibus percursis, dorso 

 carina dentata instructis ; dentibus marginalibus numerosis patenti-ascendentibus, 

 laminse latitudinis dimidium sequantibus vel minoribus ; vaginis subcylindricis 

 auriculatis, auricnlis grosse- et paucidentatis ; squaniulis intravaginalibus lineari- 

 subulatis ; floribtis masculis solitariis, spatha lacerata, anthera quadriloculari ; 



fiore femineo . . . , ; fructu 



Shoots dichotomously spreading to 15 cm. long ; basal intcrnodes 3 to 5 cm. long, 

 becoming shorter above, subcompressed, "7 mm. or less in width. Leaves to 2'5 cm. long 

 by about 5 mm. broad below ; teeth about 12 each side, more prominent and ascending 

 in the shorter young leaves at the tips of shoots. Sheaths 2 to 3 mm. long and about as 

 broad or slightly narrower, the top of the rather broad auricle deeply cut into (generally) 

 2 to 4 spiny -tipped teeth. 3Iale floioer 2'75 mm. long, the spatlie deeply cut into 

 irregular segments bearing one or more brown spines. 



India — Tinnevelly [Beddome, no. 8202, in Herb. Mus. Brit.); Madras {TFight, in 

 Herb. Kew.) ; Bengal, Upper Cobaduc, Zillah Jessore [Clarke, no. 4366) (no 

 flowers present, but apparently conspecific). 



21. Najas foveolata, A. Br. (PI. XLI. figs. 139-144.) 

 N. foveolata, A. Br. ex Magnus, Beitr. p. vii (1870). 



N. indica, Zoll. Syst. Verzeichn. Heft 1 & 2, 74 (1854), non Chamisso. 



Monoica, ramis elongatis patentibus, plus minus dichotome et superne dense ramulosis ; 

 internodiis tenuibus brevibus vel elongatis ; foliis ssepius ascendentibus, linearibus, 

 superne valde angustatis vel setaceis, planis, cum nervo mediano distincto et dentibus 

 marginalibus saepius ascendentibus parvis subtriangulis longe aculeatis, in basi 

 lammse rarioribus, instructis; vaginis subanguste cylindrieis, utrinque breviter 

 auriculatis, auriculis latis paucidentatis; squamulis intravaginalibus anguste line- 

 aribus ; Jloribus solitariis, masculis breviter pedicellatis, spatha valde rostrata ore 

 aculeifera, anthera quadriloculari ; ovario ellipsoideo cum stylo angusto stigmatibu& 



