148 
Tliis l)eautiful and seemingly widespread species -has been confused with 
D. soUda and I), divaricata. It difl'ers from tlie former in being larger, thinner, 
finer cut, with beaked indusiuin and teeth flanking most sori ; from tlie latter 
in the narrow, marginal sori. It superficiall_y resembles D. elegans, but has long 
sori and no false veins. 
Davallia pallida Mett. 
Mindanao, San Eamon, Copeland. 1631. 
Aneitium, Borneo. 
MICROLEPIA Presl. 
_ Microlepia dennstaedtioides Copeland n. sp. 
liliizomate repente, glabro vel mox glabreseente, 3 mm. crasso; stipiti- 
bus 13-20 cm. altis, 1.5-2. 5 mm. crassis, brmmeis, glabris; fromle 40-00 
cm. alta, 20-30 cm. lata, glabra, quadripimiatifida ; pinnis lanceolatis, 
acutis, inlimis (piarn sequentibiis paullo minoribiis, rhacbilms angustis- 
sime alatis ; pinnulis ovato-lanceolatis, obtusis ; segmentis iiltimis obo- 
vatis, integris vel dentatis, lierbaceis; soris 1 mm. latis, 0.5 mm. loiigis, 
marginalilms vel saepius iiitramarginalilms, receptaculis tenuibus. 
(Tab. 4.) 
AIindanao, Davao, monte Apo, 1,800 m. s. m., Copeland 1475. 
Remarkable tor the naked rhizome, small lowest pinme, and often marginal 
sori. While the aspect .suggests Dennsiacdl iq, the structure of the sorus, and 
the receptaculum in particular, make me believe that it is most fitly placed in 
Microlepia. 
Microlepia hirta (Kaulf.) Presl. 
^liNDANAo, Davao, Todaya, Copeland- 1480. 
India to Polynesia. 
DENNSTAEDTIA Bernh. 
yj Dennstaedtia williamsi Coj)eland n. sp. 
Sti])itibu.s caespitosis, 2 m. altis, 25 mm. crassis, aspernlis, sribgla- 
brescentibiis ; fronde ovata, 2 m. vel idtra alta, quadripinnata ; pinnis 
120 cm. longis, 30-35 cm. latis, acnminatis; pinnnlis* 4-7 cm. latis. 
acntis, proximis; pinnnlis" confertis plerumqne imbricatis, acntis, jirima 
aeroscopica maxima; pinnnlis'" oblongis, obtusis decnrrentilms, majori- 
bus pimiatitidis, sparsim sericeis, subcoriaceis, supra atro-viridibns, infra 
pallidioribus ; rbachibus minute nec non dense jfuliescentibus, castaneis; 
soris in sinubus solitariis, 0.7-0. 8 mm. latis. 
Mindanao, Zamboanga, San Ramon, Copeland 1032. Ajnul rivulam, 250 
m. s. m. 
This fern is inuch larger and more complex than 7). smilltii (TIk.) Moore usually 
is, has less diti'erence in color between the two surfaces, and differs conspicuou.sly 
in its broad, instead of almost linear, primary pinnules, 'this or a similar 
species growing in the same I'egion at an altitude of TOO m. has fronds reaching 
a length, stipe included, of 7 m. 
Dennstaedtia erythrorachis (Christ) Diels. 
(Mindanao, San Ramon, Copeland- 1750. 
Celebes. 
