368 The Flowering Plants of Western India. 



oblong cordate, 3 to 6 inches long, spikes densely flowered, 

 sepals 2 concave, stamens 6, follicles smooth, pointed. 



Tanks in S. M. country (D.). In Salsette and Konkans (G.). 

 Throughout India (ff.). The tubers are eatable. 



2. POTAMOGETON. Pond weed. 



1. P. Indicus. Stem branched, creeping, round, leaves lan- 

 ceolate oval, shining, peduncles solitary, axillary or opposite 

 the leaves ; flowers on a crowded spike, styles 4. 



Poona and N. Konkan. Pretty common in tanks (D.). Throughout 

 the plains of India 



2. * P. crispus. Stem branched, rather compressed, leaves 

 smaller than the last, sessile, oblong linear, waved and finely 

 toothed, spike very short, few-flowered, fruit oblique, broad 

 ovate. 



Tanks in the Konkans (-ZX)- In tanks, common ((?.). Plains of 

 India (IT.). 



H. has two other species : * P. perfoliatus, leaves ovate, stem- 

 clasping, peduncle short and stout, spike densely crowded. Streams 

 around Dapori garden (D.). This is an English species, "remark- 

 able for its brown, almost transparent leaves, which, when dry, have 

 the appearance of gold-beaters' skin." * P. pectinatus, stem round, 

 densely branched, the leaves extremely narrow, half round and 

 channelled ; flowers interruptedly whorled. PAds. Tank at Gogo, 

 most plentiful (-D.). Plains of India (H.~). 



There are many more species of Pond weed in England than in 

 India ; the flowers, I think, soon turn brown. 



3. NAIAS. 



* N. minor (N. Indica, D.). Stem round, much-branched, 

 leaves narrow linear, remotely toothed, half an inch long or 

 less, sheath dentate, ciliate, style bifid. 



Common in tanks (D.). Throughout India in still sweet water, and 

 distributed throughout the Old World generally (H.). 



There are several other species of this order, all aquatic, which 

 H. attributes to India generally, but as no references are given to 

 Bombay books, and they are not in P., I have not inserted them. 



D. has *Zostera marina (Zosteracese), the English grass-wrack, 

 found in the salt-pans near Malwan, but I cannot find it in H. It is 

 a submerged sea-water plant with slender stems and bright green 

 gi ass-like leaves, the spadix coming out of a sheath in the leaves, the 

 flowers consisting of one stamen and one pistil. 



