184 
CHRIST. 
Luzon, Province of Benguet, Baguio (Loher), Mareli, 1897, alt. 1,400 m.; 
(6025 Elmer) March, 1904: District of Lepanto, Bagnen (1912 Copeland) 
November, 1905, alt. 2,000 m. 
A species closely related to D. straminea Labill., but strongly pilose, larger, 
quadripinnatifid, the pinna} and pinnules broader and more strongly serrate, 
broadly deltoid, the pinnules of the third order broader the lobes shorter and 
broader. Resembling the South American D. coniifoUa Sw. 
MAR ATT I A Smith. 
All the Philippine forms of this genus that I have examined have been identified 
after the classification in the monograph of DeVriese and Hurting, in which work 
the diagnoses are by no means comparative and in which the differences between 
related species are not noted. The number of species is so large and their 
characters so uniform that the distinctive characters of each species should have 
been emphasized. At any rate the group merits more attention than the succes- 
sors to the two Dutch botanists have given it, for certainly the forms are very 
numerous and can not all be reduced to a single species. The morphological 
differences between young and adult fronds are very great, and the latter, even 
the fertile ones, frequently present characters that are ordinarily found only 
in young fronds. In diagnoses the adult parts only have been considered. 
I have been able to elucidate here, with a fair degree of certainty, the 
following forms : 
96. Marattia sambucina Blume. Enum. (1828) 256; DeVriese et Harting 
Monog. 6. 
Textura firmiter chartacea, rhaclri laevissima flava, pinmilis sessilibus 
basi acute cuneatis, acutis, aclultis 7.5 raro 11 cm. longis, 1 ad 1.4 cm. 
latis, margine omnino dentatis, dentibus obliquis raro patentibus, synangiis 
1.5 mm. a margine remotis 1.5 mm. longis non contiguis late ovatis, 
6 ad 8-loculatis. Colore pallide viridi. 
Luzon, Province of Benguet, Mount Tonglon (Loher) April, 1906; Baguio 
(Loher) January, 1893: Province of Union, Castilla (Loher) March, 1906. 
This is the most widely distributed form, identical with specimens from Java 
leg. Raciborski and from Celebes leg. Sarasin. It is the form previously con- 
sidered by me as M. fraovimea , 25 
97. Marattia silvatica Blume Enum. (1828) 256; DeVriese et Harting Monog. 
6. III. 25. 
Firmiter chartacea, rhachi laevissima flava, pinnulis petiolulatis, basi 
acute cuneatis acutis, adultis 9 cm. longis 13 mm. latis, margine omnino 
dentatis, dentibus brevibus patentibus, synangiis fere marginalibus, fere 
contiguis, 2 mm. et ultra longis, oblongis, 12 ad 15-locularibus. Colore 
pallido. 
Luzon, Province of Benguet, Baguio (5833 Elm,er) March, 1904. 
98. Marattia pellucida Presl Suppl. Tent. Pterid. 10; DeVriese et Harting 
Monog. 6. 
Herbacea, rhachi flava, laevissima, pinnulis petiolatis, basi abrupte 
cuneatis, apice abrupte acuminatis, adultis 10 cm. longis, 14 mm. latis, 
-^Bull. Herb. Boiss. 6 (1898) 207. 
