THE FERNS OF NORTH-WESTERN INDIA. 105 



In Chamba McDonell never got a fertile frond of 0. reyalis. In Jauusar and 

 British Garhwal specimens the fertile and steri'e fronds are quite separate. 

 Duthie and Gamble got both kinds of fronds on the same date, in May. Duthie's 

 specimens from Pachmarhi, in the Central Provinces, India, and Gamble s from 

 the Madras Presidency, are typical 0. regalis, but small. 

 Sub-Ord. IV.— SCHIZ^ACLE. 

 Genus 32. LYG ODIUM, Sw. 

 Sub-genus Eulygodium, Veins free. 



1. L. microphyllum, P. Br. ; L. scandm^ Sw., Syn. Fil. 437 ; C. E. 

 583 ; Bedd. H. B. 455. 



Trans.-Ind. States : B 'ur a id— Ziarat Vy , 5000', General (now Sir Wm.) Gatacre, 

 1895 : see " Ferns of the Chitral Relief Expeditiou^' Journ, Bot., Vol. XXXIV., 

 No. 379, March 1896. 



Distrib. — Asia : N. E. Him., Bhotan, Nuttall ; Bengal Plain, rare — Cooch Bebar, 

 Sylhet, Chittagoug, Clarke. S. Intl. — very common up to 3000'. CeyloD, abundant. 

 Malay Penins. and Isles. S. China. Australia — Queensland. Afr. : Guinea Coast. 



The only material from the Trans-Indus States consists of a part of a frond 

 with only sterile pinuas, the shape of which agrees with those of L. microphyl- 

 lum, and they are unlike those of the other species of Lygodium which have 

 been found in N.-W. India. Mr. Clarke considers L. microphyllum the best 

 marked and least variable species of the genus. It has not before been found 

 in N. India west of Bhotan, Assam, and the plain of N. Bengal. General 

 Gatacre's plant was got in about N. Lat. 35°-25', and E. Long. 71°-50'. 

 Mr. Gamble agrees with me in the identification of this specimen, and says it is 

 an interesting problem in geographical distribution — how this and Pieris 

 ludens (see supra Vol. XIII, No. 3, p, 457), got into the Chitral Region. 



2. L. pinnatifldum, Sw. ; Syn. Fil. 438. L. flexuosum, Sw., C. R. 

 584 ; Bedd. II. B. 457. L. salicifoliwn (Presl), Prantl, quoted by Baker in 

 Ann. Bot., Vol. V., No. XVIII. 



N.-W. P. : D. D. Dist.— Very common in scrub jungle and forest, 1-3000', Mackin- 

 nons, Hope, Duthie, A. Campbell, and Gamble ; Kumaun — 2-5000', S. & W., Hope, 

 Davidson, Duthie ; Sajahanpur JDist., near Indalpur, Duthie 1885 ; Gorakhpur List. 

 — Ramgarh Forest, 6 miles from Gorakhpur, A. Campbell 1887. 



- Distrib.— Asia : N. E. Ind. (Him.) up to 5000' : Bengal— throughout the Plain, 

 abundant. Clarke ; S. Ind., on both sides of the Madras Presy., common up to about 

 4000', Baddoim. Ceylon. Malaya. Philippines. N. Australia. Afr. : Angola, 

 Guinea Coast. 



This fern is common in the Dehra Dun. The fronds from the same root 

 twine together, and if there is a small tree within reach together twine round 

 its trunk to a considerable height. I have measured a plant trailing on the 

 ground, which was 12 ft. in length. The rhizome is small, erect or suberect : 

 stipes approximate, wiry, covered at base with minute black-brown scales : 

 naked above. 

 14 



