842 LEAFLETS OF PHILIPPINE BOTANY [Vor. III, Arr. 45 
species in being glabrous. P. tamariscinum Kaulf. has been 
reported by Christ (Monsunia I, p. 60) from Batjan. Van 
Alderwerelt (Malayan Ferns p. 611) takes it up and describes 
it as having both surfaces naked. It is possible that their 
plant is P. pulcherrimum; the real P. tamariscinum of Hawaii . 
has the surfaces peculiarly and characteristically glandular- 
roughened. 
Polypodium papillosum Bl. 
On stumps and mossy bowlders, Todaya, alt. 1150 m., 
No. 10769. ‘‘Ranoan.”’ 
Common in Mindanao; rarer northward to Benguet. 
Malaya. 
Polypodium (Goniophlebium) subauriculatum BI. 
No. 11918. The typical, large form, with fronds, stipes 
included, 100 to 180 em. long, and moderately serrate pinnae. 
Todaya, alt. 1200 m. and downward. ‘‘Libagod-ta-cayo.” 
No. 11438. Comparatively small plants, the pinnae 
more coarsely serrate toward the apex. In dense forest, 
Mt. Apo, alt. 1900 m. 
No. 10913. Fronds about 40 em. long, stipe included; 
pinnae short and broad and coarsely toothed. On undershrubs 
on a ridge, Mt. Calelan, alt, 1450 m. 
No. 11864. Fronds in all up to a meter long; pinnae 
narrowly linear, coarsely toothed to the base; sori not deeply 
immersed. This form is perhaps distinct. Epipbytic on 
Cyathea, Mt. Calelan, alt. 1400 m. 
The forms of P. subauriculatum are as a rule very distinct 
and constant in a locality, impressing the collector as clear- 
cut species. I have from Java all the above forms except 
No. 11864. 
Throughout the Philippines. 
Malaya to Polynesia and tropical Australia. 
Polypodium persicifolium Desv. 
Terrestrial in deep, steep ravine of Baruring river, alt, 
1150 m., No. 11631. "''Liong." Also epiphytic in moist 
