ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANDsS 579 
- description does not apply to the Hawaiian plant nor to the plants 
‘from Japan, China, and the South Pacific Islands, which are 
labeled ‘‘ Hypolepis tenuifolia” in herbaria. 
Hypolepis flaccida (Hilleb.) comb. nov. 
Phegopteris punctata var. flaccida Hilleb. Fl. Haw. Is. 563. 1888. 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: Hawaiian Islands. 
SPECIMENS EXAMINED: Baldwin 80 PD 
8. SCHIZOSTEGE Hilleb. Fl. Haw. Is. 631. 1888 
Rootstock erect; leaves clustered, bipinnate at the base, 
bipinnatifid above, cyatheoid; sori oblong, marginal upon the T- 
shaped expansions of the veins, which occasionally anastomose; 
indusium coriaceous. 
Type species: Schizostege Lydgatei Hilleb. 
SCHIZOSTEGE LypGaTEI (Bak.) Hilleb. Fl. Haw. Is. 632. 1888 
Cheilanthes Lidgatii Baker; Hook. & Baker, Syn. Fil. 475. 1874. 
Pieris Lydgatei Christ, Farnkr. Erde 167. 1897. 
TYPE LOCALITY: Oahu. 
DISTRIBUTION: On ground, Oahu and Maui, Hawaiian 
Islands. 
ILLUSTRATION: PLATE 41. 
SPECIMENS EXAMINED: Maui, Gulch of Waihee, Hillebrand 
B; Oahu, Valley of Wailupe, Lydgate & W. F. Hillebrand B; 
Koolaulua Mts., between Punahua and Kaipaupau, Forbes BM. 
The specimens noted above are the only collections of this 
species that have been recorded, and an interval of about twenty- 
five years elapsed between the collections made upon Oahu. 
The habit of Schizostege closely resembles that of Pteris 
biaurita L., but the relation is no closer than that of Cheilanthes 
to Pteris or of Pellaea to Cheilanthes. 
Schizostege was a monotypic Hawaiian genus until Copeland 
(Philip. Jour. Sci. 1: Suppl. 2. 1906) described two Philippine 
species, S. pachysora and S. calocarpa, both of which he states 
Tesemble Cheilanthes to a greater extent than they resemble 
Pteris. 
