386 49. BLECHNTIM. § 1. EUBLECHNUM. 



* (1) B. Treiibii, ». A. r. R., Bull. D6p. Agr.I. N., 4908,Tmi, 15. 



Small. Rhizome short, erect or nearly so, slightly scaly, copiously stolo- 

 niferous so as to form a dense mass of low plants. Stipes tufted, clothed with 

 few, scattered scales, but more copiously towards the base, slender, erect, 

 2 — 8 c.M. long. Fronds simple, lanceolate, 4 — 9 c.M. long, 8 — 12 m.M. broad, 

 narrowed gradually towards both ends, the apex acuminate, but the point 

 bluntish, the margin entire or slightly irregular, the very base not rarely pur- 

 veyed with 1 — 2 minute auricles. Textm-e subcoriaceous ; surfaces naked; 

 veins not very close, some of them sometimes anastomosing, mostly forked, 

 sometimes simple or 3-furcate, the apex thickened, not reaching the cCtargin. 

 Sori long, continuous or interrupted, close to the costa, not reaching the base 

 and apex of the fronds. — Very near the brazilian and panaiuan B. lan- 

 ceola, Sw. (Hk. Bk, Syn. Fil., 185; Hk., Icon. PL, X, tab. CMLXX, right-hand 

 figure), but distinguished from Baker's description and Hooker's dravring by 

 the tufted stipes, the smaller fronds, the mostly once forked and sometimes 

 anastomosing veins. — It bears the name of Prof. Dr. M. Treub, Director of 

 the Agricultural Department in Netherlands India. 



Java (Mount Salak). 



(2) B. nitidiim, JPf., Hk. Bk., Syn. Fil., 184; Hk., Spec. Fil., Ill, 

 tab. CLV; B. elongatim, Gai/d., Freyc, Voy. Ur. Phys., Bot., 395; C. Chr.,Ind. Fil. 



Stipes stout, erect, naked, 7 — 10 c.M. long. Fronds oblong-lanceolate, 50 

 C.M. or more long, 10 — 15 c.M. broad. Segments numerous, erecto-patent, sub- 

 falcate, linear, 7—10 c.M. long, Vj— IV2 c.M. broad, narrowed gradually 

 towards the point, dilated and connected at the base, the edge undulato-den- 

 tate; lower segments linear, acute and not much smaller than the rest. 

 Texture coriaceous, rachis and both surfaces naked; veins fine. Sori in a 

 continuous line on each sidcj close to the midrib; indusium conspicuous. 



Philippines; Polynesia, Brasilia. 



(5) B. cartilaginenin, ««?., Hk. Bk., Syn. Fil., 184; B. nitidum, 

 Pr., var. contracfa, Hk., Spec. FiL, 111, 44, tab. GLVI. 



Rhizome oblique, densely clothed at the crown with blackish, fibrillose 

 scales. Stipes strong, erect, 10^15 c.M. long, scaly and muricate in the lower 

 part. Fronds ovate-oblong, 30—60 c.M. long, 15—25 c.M. broad. Segments 

 numerous, erecto-patent, linear, 72 — I'/i c.M. broad, narrowed gradually 

 towards the apex, the margin finely toothed, dilated and connected at the base, 

 the lower ones not much smaller than the others. Texture coriaceous; rachis 



