﻿• 22. DRYOPTERIS. § 1. LASTRAEA. 203 



Rhizome erect or suberect. Stipes tufted or approximate, 23 — 60 c.M. 

 long, often glaucous, scaly throughout or at the hase only. Fronds deltoid- 

 lanceolate, 30 — 100 c.M. long. Lower pinnae largest, often 20—30 c.M. long, 

 10— 13 c.M. broad, sessile or short-stalked, linear-lanceolate, with the rachis 

 often narrowly winged above. Pinnulae close, ovate- to linear-lanceolate, 

 '/■2 — 1 V2 ^ J^^' bi*oad, cut down nearly or quite to the rachis into close, pin- 

 iiatilid lobes 1^/2 — ^Va iti-M. broad. Texture herbaceous; main rachis hairy 

 on the upper side; rachises and under surface finely villose, the hairs whitish, 

 scattered. Sori minute, copious, 4 — 6 on each side of the costulae; indusium 

 fugacious. 



War. pallida : Indusium suppressed and undeveloped, visible only by 

 50 — 100 X magnifying power, soon hidden between the much larger capsules. 



Br. India across China and Japan, Polynesia and Trap. Australia. 



* (60) O. %eylsaniea, ». A. v. R.; D. ohtusiloba, 0. Ktze {not C. Chr.), 

 Rev. Gen. PL, II, 815; Z). peranemiformis, C. Chr., var., C. Chr., hid. Fil. ; 

 Aspidiimi oblusilobiim, Pranll (not Bk.), Christ, Ann. Btz., XV, 130; Laslraea 

 ohtusiloba, Bedd., Ferns Br.L, II, tab. CCXCVI; Nephrodium obtusilobum, Bk., 

 Hk. Bk., Syn Fil., 284. 



Stipes 30—60 c.M. long, firm, erect, densely clothed with large, ovate 

 scales. Fronds 90—120 c M. long, 45—60 c.M. broad. Lower pinnae longest, 

 to 15 c.M. broad. Pinnulae lanceolate; most of the segments of the lower 

 pinnae distinct, ovale, oblong, cut down to the rachis into oblong-rhomboidal, 

 + entire lobes, the largest to 3—6 m.M. long, to 2^2 — 3 m.M. broad. Tex- 

 ture herbaceous; rachises more or less scaly, the upper ones, and especially 

 the under surface more or less glandular ; lower veins of the lobes forked. 

 Sori medial. 



Celebes; Ceylon. 



* (61) D. multlgcta, C. Chr., Ind. Fil. ; Nephrodiuinmultisetum,Bk., 

 Journ. of Linn. Soc, Bot., XXII, 226. 



Stipes tufted, long, pale, densely clothed like the rachises with long, 

 spreading or squarrose, rigid, subulate, castaneous bristles. Fronds deltoid, 

 decompound, ± 120 c.M. long. Lower pinnae oblong-lanceolate, 30—45 cM. 

 long, 10 — 15 c.M. broad. Pinnulae multijugate, lanceolate, 1 — 2 c.M. broad, 

 the largest with 12 — 15 adnate, distinct, pinnalifid divisions on each side 

 below the pinnatifid apex. Tertiary divisions linear-oblong, ± 2 m.M. broad; 

 the lobes small, deltoid. Texture herbaceous; veins foi'ked in the largest 



