FERNS OF THE MALAY-ASIATTC REGION. 
9 
Angiopteris augustifolia Presl is the commonest Philippine species. Fronds 
up to 5 m long, tire pinnules green on both surfaces, typically about 13 cm long, 
less than 1 cm broad, apex finely serrate; recurrent veinlets evident; sori of 5 
or 6 sporangia. A. cauclata de Vr., does not seem to be more than a form of 
Ibis, with especially pubescent axes. 
Angiopteris pruinosa Kze. (as construed by Christ) is a beautiful plant 
with fronds dark green above and bluish-wliite beneath, sori of about 8 sporangia 
close to the margin, and the line apex obscurely toothed, the base not cordate. 
It is found in the Visayas and north to central Luzon; it does not seem to me 
identical with the Javan plant of Kunze. 
Angiopteris similis Presl, described from Java and recently found in Minda- 
nao, has pinnules up to 18 cm long and 21 mm broad, serrate only on the sterile 
tip, pale green beneath, with very fine recurrent veinlets and dark brown sori. 
Angiopteris cart ilagidens Christ (Plate IV) is a Benguet plant, with the 
pinnules everywhere prominently and usually very sharply toothed, recurrent 
veinlets conspicuous but short, and sori of 8 to 12 sporangia well inside the 
margin. 
A. crassipes Wall, is an example of the species without recurrent veinlets. 
It extends from Nepal and Burma to Japan. 
2. MACROGLOSSUM Copeland. 
Caudex globose; fronds very large, simply pinnate; recurrent veinlets 
none ; sori about 40 ; sporangia borne on the specialized, convex margin of 
the pinnae. A single species. 
Macroglossum alidae Copel. Philip. Journ. Sci. Bot. 3 (1908) 343. (Plate 
V.) 
Fronds suberect, about 3 m high; pinnae attached to racliis by a pul- 
vinus, up to 50 cm long, 6 cm wide, abruptly narrowed to the caudate 
tip, base rounded, coriaceous, glabrous. 
Borneo ( Sarawak, Bidi ) . 
3. ARCHANGIOPTERIS Christ et Gies. 
Frond simply pinnate, pinnae with swollen pulvini, few; veins free: 
sori long, midway between costa and margin; sporangia very small (for 
this family) and numerous; scales of the indusium persisting as a white 
line along the middle of each sorus. A single species. 
Archang iopteris henryi Christ et Gies. (Plate VI.) 
Stipe and stalks of pinnae finely scaly ; pinnae 5 to 12, stalked above the 
pulvini, about 20 cm long by 4 cm broad, acuminate, serrate toward the 
apex, glabrous, herbaceous; sori on most veins except at base and apex 
of pinna; sporangia up to 160 in a sorus. 
Yunnan, in forest, alt. 1,500 m. 
