ASPLENIE.E — CONIOGUAMME. 67 



Baguio, Elmer 6032; Arayat, holier; Davao, Coj)eland 980, 1135. 



Tropical Africa across Malaya to Hawaii. 



Two reasonable distinct Philippine ferns are included here, one entire 

 and usually simply pinnate, the other serrate, bipinnate, and more mem- 

 branous, usually at a higher altitude. 



(24) HEMIONITIS Linnaeus. 



Rhizome short; stipes clustered, chaffy, those of the sterile frond much 

 the shorter; fronds in the Philippine species entire or lobed, with ample 

 base, pubescent; veins copiously anastomosing, bearing sori throughout. 

 Striking ferns; with a cluster of sterile fronds on the ground, and the 

 single or few fertile ones long stalked. 



(1) H. arifolia (Burm.) Beddome. Stipes of the sterile fronds 2 to 5 

 cm. long, of the fertile 20 to 30 cm., brown or black, glossy, chaffy through- 

 out; fronds 5 to 7 cm. long, 3 to 4 cm. broad, entire or nearly so, apex 

 rounded, base deeply cordate, the fertile frond rather the smaller and 

 with more developed basal lobes, coriacous, lower surface chaffy, sparsely 

 unless on the costa and margin; midrib disappearing below the apex, 

 other veins almost invisible; sori forming a fine network over the fruiting 

 surface. 



Corregidor, Cuming 285; Manila, Loher; Antipolo, Guerrero; Mount 

 Mariveles, Merrill 3259. 



India. 



The Philippine plant differs from the Indian in having narrower fronds, 

 the sterile shorter stalked, stipes squamulose throughout, and texture 

 more coriaceous. 



(2) H. Zollingeri Kurz. Fronds clustered in a dense rosette; the 

 sterile nearly sessile, oblanceolate, entire, about 10 cm. long, membrana- 

 ceous; main veins distinct nearly to margin, with copious fine, in-egular 

 areolise between them; fertile fronds linear, slightly repand, 8 cm. long, less 

 than 1 cm. broad, with a stipe 3 to 5 cm. high; sori in 2 to 3 rows, parallel 

 with costa and margin, anastomosing by short cross-bars. 



Panay, Steere. 

 Sumatra to Celebes. 



(3) H. gymnopteroidea Copeland. Caudex short, erect, scaly at the 

 tip; fronds clustered, the sterile sessile or subsessile, 7 to 17 cm. long, 

 2.3 to 5 cm. broad, oblanceolate, obtuse or acute, margin repand and 

 crisped, broad or contracted at the base, papyraceo-herbaceous, dark green 

 with light patches, glabrous except for the usually squamulous costa; 

 areola; rather large, with copious free included veinlets; fertile frond on 

 a stipe 5 to 15 cm. high, itself 5 to 10 cm. high, 2 to 4 mm. broad, the 

 lamina often interrupted; soriferous veins 1 to 3 on each side, about 

 parallel to the costa, occasionally anastomosing; entire lower surface 

 early covered by sporangia. 



Lamao Forest Reserve, terrestrial at lower elevations, Copeland. Merrill 

 3113; Barnes 106. 



