﻿4l8 33. DIPLAZIUSI. § 1. EUDIPLAZIUM. 



Texture thinly herbaceous ; rachis chaffy like the stipe ; main veins pinnate in 

 the lobes; veins 4 — 5 on each side. Sori not reaching the margin. 



Philippines. 



(40) O. deltoideaiiu, JPf., Copel., Polypod. Philipp., 76; Asplenium 

 delloideum, Pr., Hk. Bk., Syn. Fil., 237; Pr., Rel. Haenk., I, tab. VII, fig. 2. 



Rhizome erect, black-scaly. Stipes 15 — 20 c.M. or more long, black and 

 black-scaly at the base, naked and green above. Fronds 30 — 40 c.M. long, 

 20 — 25 c.M. broad, deltoid, with a few distant pinnae on each side. Lowest 

 pinnae largest, + 6 c.M. broad, bearing numerous subsessile pinnulae. Pinnulae 

 obtuse, + 1 — I'/i c.M. broad, cut ± ^/g of the way down to the costa into 

 blunt lobes. Texture herbaceous;, surfaces naked; rachises naked, black or 

 green; main veins pinnate in the lower lobes. Sori reaching the margin. 



Celebes, Philippines. 



(41a) D. lleyenie-num, J»f., Copel., Polypod. Philipp., 76; As- 

 plenium Meyenianum, MetL, Hk. Bk , Syn. Fil., 238. 



Fronds probably + 1 M. long, ovate-triangular. Largest pinnae 30 — 40 c.M. 

 long, 20 — 25 c.M. broad, stalked, alternate, oblong-lanceolate, acuminate. Lower 

 pinnulae 2^2 — 5 c.M. broad, stalked or subsessile, linear-oblong, acuminate, the 

 base subcordate, the edge pinnatifid ± ^/.j-way down to the costa; higher 

 pinnulae decurrent with a narrow wing or confluent at the base. Lobes sub- 

 opposite, ovate-oblong, subfalcate, obtuse, crenate or serrulate, to + ^[^ c.M. 

 broad. Texture thinly coriaceous ; surfaces glabrous ; rachis brown, channelled 

 above; veins pinnate, the higher forked. Sori copious, reaching from the 

 costulae nearly to the edge. 



Philippines. 



(41fc) O. atratuni, €hrist, Philipp. Journ., II, 163. 



Stipes 25 c.M. or more long, sulcate, ebeneous or black-purple, the base 

 thick, densely clothed on the inner side with long, subulate, black scales, 

 the rest nearly naked or minutely furfuraceous. Fronds broadly deltoid, 3-pin- 

 natifid, acute, 60 c.M. or more long, the base 45 c.M. or more broad. Pinnae 

 distant, ± 20 on each side, on stalks + 2 — 3 c.M. long, the lowest not 

 reduced, + 10 c.M. broad, horizontally spreading, long-acuminate, narrowed 

 at the base, the higher subsessile. Pinnulae ± 20 below the incised apex, 

 more than 1 c.M. apart, horizontally spreading, the lowest stalked, broadly 

 lanceolate, acuminate, cut down '/a'^ay to the costa, but deeply pinnatifid at 



