﻿54. ATHYRIUM. 43B 



* (14) A., nigripes, Moove (not Bedd.), Christ, Farnkr. d. Erde, 

 224 ; Asplenium nignpes, BL, Rac, Flor. Btz., I, 230 ; Aspidium nigripes <^ 

 costale, BL, Enum., 162 & 170. 



Rhizome erect, clothed with dark-brown, lanceolate scales. Stipes tufted, 

 15—70 c.M. long, stramineous, erect, scaly below. Fronds 30 — 60 c.M. long, 

 12 — 50 c.M. broad, ovate-lanceolate to deltoid, with numerous erecto-patent 

 pinnae on each side. Pinnae lanceolate, pinnate, the apex acuminate, pinna- 

 tifid. Lowest pinnulae 1^2 — 4 c.M. long, oblong, cut 72'^*y down or quite 

 to the costa into oblong or ovate, more or less toothed segments. Tex- 

 ture thin, membranaceous or herbaceous; rachis naked, stramineous; upper 

 surface beset with few, distant, subulate, spine-like appendices on the midribs 

 of the segments. Sori oblong or linear-oblong, often slightly curved only, prin- 

 cipally in 2 rows near the costae. 



Trop. Asia, China, Madagascar. 



* (15) A. umbroiiuiii, JPr., Christ, Farnkr. d. Erde, 225; A. 

 australe, Pr., Bedd., Ferns S.I., tab. CLVIII ; Diplazium umbrosum, Bedd., Handb. 

 Ind. Ferns, 188; Asplenium umbrosum, J. Sm., Rac, Flor. Btz., I, 228; Po- 

 lypodium umbrosum,. Ait., (oldest name); — var. muricatum; Asplenium mu- 

 ricatum, Mell., Ann. Mus. Bot. L. B., II, 259. 



Caudex erect, to 25 c.M. high, densely covered with the bases of fallen 

 fronds, roots and brown, lanceolate scales. Stipes 50 — 80 c.M. long, strong, 

 scaly at the base. Fronds 60—160 c.M. long, 30—120 c.M. broad, ovate- 

 lanceolale to deltoid. Pinnae ovate-lanceolate to deltoid-lanceolate, 7 — 20 c.M. 

 broad. Pinnulae close, cut down nearly or quite to the costa into unequal- 

 sided, elliptico-rhomboidal segments ^2 — ^'/i ^•^- long, 2 — 5 m.M. broad; 

 the apex of the pinnulae lobed. Segments sessile, the apex rounded, the 

 edge toothed or deeply inciso-crewate, the base narrowed or decurrent. Tex- 

 ture herbaceous; surfaces naked; central ribs of the segments pinnate, veins 

 simple or forked. Sori oblong, copious, the lower often double; indusium 

 inflate, slightly curved, entire. — A variable plant. 



'War. muricatum: Stipes muricate. 



Trop. Asia ^ Australia, New Zealand, Africa; — var. muricatum: Java. 



* (16) A., jsilvaticum, MUde, Bot. Zeit., 4866, o16; A.woodwardi- 

 aides, Christ, Fil. Saras., Ill, 253; Asplenium basilare, Moore, Rac, Flor. Btz., 

 I, 229; A. woodwardioides, Bk., Hk. Bk., Syn. Fil., 229; Diplazium brevisorum, 

 J. Sm., Journ. of Bot., Ill, 408; AUanlodia sylvalica, BL, (oldest name). 



