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R. H. COMPTON : PTEIIIDOPHYTA. 



455 



species, whose differences are chiefly in luxuriance, following a considerable 

 range of habitat. 



L 



ScHiz^A FISTULOSA Labill. Presqu'ile Bogota ; occasional on dead loo-s in 



Casiia 



Ignambi ; 



on ground in Niaouli association ; gneiss ; 3500 U. 1341, 1541. Tasmania, 

 New Zealand, antarctic America, Borneo, Madno-ascar. 



The Boorot: 



I plant, grown in shade, is unusually tall, (he frond being 

 18 indies in length ; there are about 30 fertile segments on each side of the 

 spike. 



S 



Mett 



pontine. 973. 



River Ngoye ; streamsides in forest shade : 



ser- 



Schlechter 15336, in Herb. Brit. Mus., issued as S. intermedia, has a broad 

 frond and glabrous sporophylls and should probably be regarded as a variety 

 of S. Icevlgata ; the fronds are too long for S. plana Fourn. S. intermedia 

 Mett. has ribbon-shaped carinate fronds, 2 mm. broad, and the sporophylls 

 are hairy. 



Rosenstock's Fil. Nov. Cal. exs. 1 18 (coll. Franc\ distributed as S, Icvvigata. 

 belongs here, 



S. L^viGATA Mett. Bale Ngo j dry serpentine scrub ; 500 ft. 247. 



LYGomuM HiANS Fourn. Nckando; conifer forest; twining by clonoated 

 rhachis to height of 10 ft. ; serpentine ; 3500 ft. Ignambi; high forest ; 

 twining ; ft-neiss ; 3500 ft, Mt. Panic ; forest ; gneiss ; 3000 ft. lOGo' 



1540, 1810. 



In this remarkable species certain of the fronds are dichotomous and 

 definite in growth ; in others the rhachis goes on growing IndeHnitely, 

 twining round branches of shrubs and bearing lateral dichotomous leaf- 

 segments, some sterile, others fertile; the elongated rliachis being evidently 

 a sympodium. On Mt. Panic a witches' broom gall is frequency present 

 (1810). ^ -^ ^ ' 



L. BETIUULATUM Schkuhr. Tonghoue Mts. ; very common climbing over 

 shrubs and trees ; cretaceous ; 500 ft. Bale Ngo ; on stream flood-'J^lain ; 

 serpentine ; 50 ft. Mt. Mou ; abundant in Niaouli association ; cretaceous \ 

 800 ft. Kuakue; river flood-pLiin ; serpentine; 50 ft.; etc., etc., 171,' 

 244, 445. Polynesia, Australia. 



OSMUNDAGEiE. 



Leptopteeis Wilkesiana Christ. Mt. Oanala ; locally abundant in damp 

 parts of high forest ; schists ; 2000 ft. Ignambi ; abundant in moist forest ; 

 gneiss ; 4000 ft. 1205,1560. New Guinea, Polynesia. 



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