OF CEYLON AND INDIA. 
269 
studied the Ceylon species, then visited Europe to study the 
Indian forms, but found the material hitherto preserved to 
be practically valueless, and visited India myself and col- 
lected fresh material of all but two of the recorded forms, 
and of several new ones. I am indebted for valuable 
assistance to the various friends there mentioned. The 
life-histories of the Indian species have still, however, to 
be worked out upon the spot. 
As there is no good account of this family in English, and 
as Warming’s classical papers are written in Danish, it will 
be well to commence with a short account of what is already 
known about these plants. The chief literature extant is 
given in the following list, to which reference will be made 
by number only in the rest of the paper : — 
List of Literature. 
(1) Aublet, Hist, des PI. de la Guiane franc., L, 582, t. 233, 1775. 
(2) Bâillon, Hist, des Plantes, IX., 1886, p. 256. 
(3) Beddome, Anamallay Plants, Trans. Linn. Soc., xxv., 1865, 
p. 223. 
(4) Bentham & Hooker, Genera Plantarum, III., p. 105. 
(5) Bischoff, in Flora, xxvii., 1844, p. 416, t. 1. 
(6) Bongard, Mem. de I’Acad. de St. Pet., VI., ser. III., 69, 1834. 
(7) Brown, B., Canoe and Camp Life in Brit. Guiana, London, 
1876, p. 11. 
(8) Cario, Anatom. Unt. von Tristicha hypnoides, Bot. Ztg., 1881, 
p. 25. 
(9) Du Petit Thouars, Gen. Nov. Madag., ii., 1806 (Hydrostachys). 
(10) Endlicher, Genera Plantarum, p. 268. 
(11) Engler, Podostemonaceæ africanæ, Engl. Bot. Jahrb., XX., 
p. 134, 1894. 
(12) Gardner, Structure and AflBnities of P., Calc. Journ. Nat. 
Hist., vii., 166. 
(13) Goebel, in Pflanzenbiol. Schilderungen, I., 166, II., 331, 374. 
(14) do. Organographie d. Pflanzen, pp. 212, &c. 
(15) Griffith, in Asiatic Res., xix., p. 103. 
(16) do. leones Plant. Asiat., t. 541-544. 
(17) do. Notulæ ad PI. As., p. 376, &c. 
(18) Hooker, Sir J. D., Flora of Brit. India, V., p. 61. 
(19) Hooker, Sir W. J., leones Plant., t. 2,356, 2,357. 
(20) do. Companion to the Bot. Mag., II., pi. xx., and p. 23. 
(21) Humboldt & Bonpland, Plantæ Aequin., I., 39, t, 11, 1808. 
