208 RospINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
Pinnae acuminate. 
Pinnae cut into rhombic lobes 
Leafstalk and midrib paleaceous. 
Leafstalk and midrib smooth. 
Leafblades more than once pinnate. 
Bl bhi Pimervectaie to bipinnate, upper basal pinnule 
auriculate. 
Binds aad to eT ARI basal pinnules various. 
Blades bipinnate to tripinnatifid. 
es chartaceous. 
Blades under 35 cm. lon 
Blades oblong, ultimate divisions flabel- 
late. 
Blades 3.75-7 cm. X12-18 mm. 
Blades 20-30 cm. X18—-45 mm. 
Blades lanceolate, ultimate divisions 
ovate-lanceolate. 
Blades over 35 c 
r ed eee bas patent; pin- 
kes obliquely ee ee 
Pinnae lanceolate, approximate; pin- 
s rhomboidal, basal umaeAlS oc- 
casa auriculate. 
Blades coriaceou 
lades ES ultimate divisions obovate 
t 
Pinnae obliquely rhomboidal, approxi- 
t 
mate. 
Pinnae ovate oblong, patent. 
Blades lanceolate. 
Ultimate divisions wai or trun- 
cate, pinnae approxi 
Ultimate divisions ieee 
patent. 
Blades tripinnate to quadripinnate. 
Blades broadly oblong. 
Blades deltoid or deltoid lanceolate. 
lades broadly deltoid, 10-20 cm. long. 
Blades deltoid lanceolate, 30 cm. or more 
long. 
Blades membranaceous; ultimate divi- 
sions spinulose. 
Blades thick, chartaceous. 
Rachis winged; ultimate divisions 
spatulate, less than 2 mm. 
broad. 
. Rachis not winged; osihiane divi- 
sions 4 mm, or more broad. 
A, nitidulum. 
A. horridum. 
A. glabratum., 
A. lobulatum. 
A. varians. 
A. Macraei. 
A. Lydgatet. 
A. Goldmannii. 
A. acuminatum. 
A. rhipidoneuron. 
A. insiticium. 
> 
. cuneatum. 
A. parallelum. 
A. patens. 
A. Adiantum-nigrum. 
A. vexans. 
: 
A. schizophylium. 
A. sphenotomum. | 
