RoBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANDs 243 
Lower surface of blad picuously glaucous, for the most part 
slightly tomentulose, becoming glabrous; veins 9-10 to a seg- 
ment, usually 1-2-forked. C. glaucum, 
CipoTiuM MeEnziestt Hook. Sp. Fil. 1: 84. 1844 
Dicksonia Menziesii Hook. & Baker, Syn. Fil. 49. 1866. 
TYPE LOCALITY: Oahu, Hawaiian Islands. 
DisTRIBUTION: On ground at 600-1,250 m. elevation; usually 
found with lehue and other hardwood trees, in a damp forest; 
Hawaiian Islands. 
ILLUSTRA : Hook. Sp. Fil. 1: pl. 29c. 1844. 
SPECIMENS EXAMINED: Molokai, Hillebrand B, C; Oahu, 
Beechey K, C; Forbes BM; Robinson 707 V; Kauai, Heller 2693 C; 
Hawaiian Islands, Baldwin 5 B,C, N; Wilkes Expedition C. 
The ohia-lehue (Metrosideros villosa Sm.) often succeeds Cibo- 
tium in the forest by germinating in the crown of the fern, sending 
down its roots along the moist trunk and finally shutting out the 
light entirely, so that in time the fern dies and the lehue is left 
with what is apparently a hollow and fissured trunk. 
Heller 2590 may be a cross between C. Menziesii and C. 
Chamissoi, in which more of the dominant characters belong to 
the former than to the latter. 
Cigotium Cuamissor Kaulf. Berl. Jahrb. Pharm. 21: 53. 1820 
P inonia Splendens Gaud. Ann. Sci. Nat. 3: 507. 1824. 
Dicksonia Splendens Desv. Prod. 318. 1827. 
Cibotium pruinatum Mett. in Kuhn, Linnaea 36: 150. 1869. - 
TYPE Locauity: Oahu. 
: DistriBuTIon: On the wooded slopes of mountains, at eleva- 
ons of 600-1,200 m., Hawaiian Islands. 
lLLusrRations: Kaulf. Enum. pl. 1. f. 14. 1824; Hook. Ie. 
Pl. 17: pl. 1603. 1886. 
SPECIMENS EXAMINED: Hawaii, Lichtenthaler N; Oahu, Beechey 
B; Bennett B; Chamisso B; Gaudichaud B; Heller 2898 C; Robin- 
Mopo. Saford 875 N; Kauai, Heller 2600 C, K; Knudsen 36 B; 
oe pe Hillebrand B, C; Hawaiian Islands, Baldwin B; Gaudi- 
B,C; Lydgate B; Wilkes Expedition C, N. 
