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ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANDs 245 
Leaf light green, less than 6 cm. high, lanceolate or oblong- 
lanceolate. . I. humile. 
Leaf dark green, more than 6 cm. high. 
Leaf deltoid. T. cyrtotheca. 
Leaf irregular in outline, usually narrowing below. _T. radicans. 
TRICHOMANES BAUERIANUM Endl. Prod. FI. Nort. 17. < 1833 
Trichomanes apiifolium Presl, Hym. 16: 44. 1843. 
Trichomanes eminens Presl, Hym. 16: 44. 1843. 
Trichomanes myrioplazium Kunze, Bot. Zeit. 4: 477. 1846. 
Trichomanes metfolium Brack. Fil. U. S. Expl. Exp. 259. 1854. 
TYPE LOCALITY unknown. 
DIstRIBUTION: On ground in wet forests; Polynesia. 
SPECIMENS EXAMINED: Hawaii, Beratz B: Wilkes Expedition 
B, C; Molokai, Hillebrand B; Maui, Robinson 381 V; Oahu, 
Forbes BM; Macrae B: Robinson 507 V; Kauai, Heller 2179 B; 
2741 B; Johnson B; Remy 51 B; Robinson 469 V. 
The bilabiate form of the indusium of T. Bauerianum Endl. 
gives the appearance of Hymenophyllum to the young leaves, but 
the projecting vein with its attached sporangia and the urn-shaped 
form of the mature sporangium place the species in the genus 
Trichomanes. 
TRICHOMANES PARVULUM Poir. in Lam. Encyc. 8: 33. 1808 
Trichomanes stbthorpioides Gaud. Bory in Willd. Sp. Pl. 5: 498. 
I8Io 
Trichomanes bifolium Bl. Enum. Pl. 223. 1828. 
Trichomanes minutum Bl. Enum. Pl. 224. 1828. 
Trichomanes Saxifragoides Presl, Hym. 39. 1843. 
Gonocormus saxtfragoides v. d. Bosch, Hym. 9. 1861. 
TYPE Locatity unknown. 
Distrigution: Somewhat rare, on tree trunks in moist woods 
1,000 m. elevation; Polynesia. 
USTRATION: Hook. Sp. Fil. r: 39. 1844. 
oo EXAMINED: Maui, Bailey C; Oahu, Forbes 1083 
ee oe 53 V; 502 V; 509 V; Hawaiian Islands, Baldwin 
' 107 C; Hillebrand B; C; Wilkes Expedition C. 
Serta green fronds appressed upon the tree trunks or upon 
S where water is trickling over them, make a beautiful 
at 
ILL 
