5S ROBINSON: PTERIDOPHYTA 
Leaves imbricated; stems 20 cm. or less in length. S. arbuscula, 
Leaves not imbricated; stems more than 20 cm. long. 
Branching flabellate; megasporangia 3-valved. S. Menziesii 
Branching pinnate or apparently so; megasporangia 2-valved. S. Springit. 
SELAGINELLA DEFLEXA Brack. Fil. U. S. Expl. Exped. 332. 1854 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: Rare, on trees, at elevations of 600—-2,000 m., 
Hawaiian Islands. 
ILLUSTRATION: Brack. Fil. U.S. Expl. Exped. pl. 45. 1854. 
SPECIMENS EXAMINED: Maui (Mt. Eeka) Hillebrand B; C; 
Molokai (Wailau) Hillebrand B; Kauai, Hillebrand K; Knudsen 
B; Johnson B. 
S. deflexa is easily distinguished from Lycopodium serratum by 
its backwardly directed spinulose leaves and the shortness of the 
leaves at the base of the stem which give the shoot the appearance 
of an inverted cone. 
SELAGINELLA ARBUSCULA Spring, Mém. Acad. Brux. 24: 183. 
1848 
Lycopodium arbuscula Kaulf. Enum. Fil. 19. 1824. 
Lycopodium pennigerum Gaud. Voy. Freyc. Bot. 288. 1828. 
TYPE LocaLity: Oahu, Hawaiian Islands. 
DIsTRIBUTION; Hawaiian Islands. 
SPECIMENS EXAMINED: Hawaii, Hillebrand B; Robinson 269 V; 
Oahu, Diell C; Heller 1993 C; (Nuuanu) Hillebrand B; (Kahaua) 
Hillebrand B; Meyen B; (Hillebrand’s Glen) Robinson 121 V; 
184 V; Hawaiian Is., Gaudichaud B; Macrae K; Wilkes Expedition 
C; Ex Herb. Kew. C. 
The small size of the plants and the closely crowded leaves 
distinguish S. arbuscula from the other species usually found 
growing with it. 
SELAGINELLA MENZ1Esil Spring, Mém. Acad. Brux. 24: 185. 1848 
Lycopodium Menziesii Hook. Bot. Misc. 2: 390. 1831. 
Selaginella flabellata Underw. Minn. Bot. Stud. 14: 793. 1896. 
Not Spring. 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: In mountain forests, Hawaiian, Samoan, and 
Fiji Islands. 
ILLUSTRATION: Hook. & Grev. Ic. Fil. pl. 200. 1831. 
