430 '^9- STENOCHLAEHA. 



§ 2. TERATOPHYLLUM. 



(8) S. aculeata, Kse. 



According to Christ, the abnormal barren leaves, i. e. the water- 

 leaves of the young plant, vary from simple to copiously divided, and 

 they may even be provided with asplenioid or scolopendrioid pseudo-sori 

 and indusia. — On this subject, however, see Copeland's article on the 

 genus Phyllitis, in Philipp. Journ., VIIF, 149 etc. 



The specimens occuiTing in the Buitenzorg Herbarium belong to 

 several forms of which the following are readily distinguishable because 

 of the presence of both normal and abnormal barren leaves : S. aculeata 

 Kze and S. gracilis Kse. 



(8a) S. acHleata, Kme; Davallia achilleifolia, Wall., Hk., Spec. 

 Fil., I, tab. LYI D; — var. crassior, v. A. v. R., in Bull. Btz., 1916, 

 XXIII, 20—21 ; — var. inermis, Karst., in Ann. Btz., XII, tab. XIV— XV, 

 fig. 25—28 ; Davallia spec, Bedd., Ferns Br. I., II, tab. CCIX. 



Fully developed water-leaves with the ultimate segments oblong, 

 cuneate-oblong or obovate, at least not subcapillary ; pinnae of normal 

 barren fronds green. 



Forma typica: Rhizome aculeate ; water-leaves 3-pinnatiM or 3-pinnate, 

 the ultimate segments firm, narrowly cuneate-oblong, mostly rounded at 

 the apex; pinnae of normal barren fronds sessile or short-stalked, naked, 

 rotundate-cuneate at the base. — Trop. Asia. 



Var. crassior: Rhizome aculeate; water-leaves 2-pinnatifid or 

 2-pinnate, the ultimate segments thick, broadly cuneate-obovate, mostly 

 emarginate at the apex; pinnae of normal barren fronds conspicuously 

 stalked, deciduously minutely fimbriato-squamulose on both sides, at least 

 the lower rotundate or rotundate-subcordate at the base. — Sumatra. 



Var. inermis: Rhizome rather smooth; water-leaves 2-pinnatifid 

 or 2-pinnate, the ultimate segments rather thin, cuneate-oblong, rounded 

 or sub-2-fid at the apex; pinnae of normal barren fronds short-stalked, 

 cuneate or rounded at the bas^ — Borneo, Batu. 



(86) S. gracilis, Miee, in Bot. Zeit., 1848, 142; Acrostichum 

 gracile, Bac, Flor. Btz., I, 53 ; Olfersia gracilis, BL, Flor. Jav., Suppl., tab. 

 XCVI; Lomaria gracilis, BL, Enum., 205; — var. Williamsi ; (S. Williamsi, 

 Und., in Bull. Torr. CI., XXXIII, 41. 



Like the preceding but the fully developed water-leaves copiously 



