272 
CHRIST. 
NEPHROLEPIS Schott. 
Nephrolepis dementis sp. nov. 
Rhizomate ignoto; stipite 4 ad 9 cm longo, tereti, 1 mm crasso, cum 
rhachi straminea dense squamulis ochraceis peltato-ovatis tecto; fronde 
25 ad 40 cm longa, 4 cm lata elongato-caudata et fere indefinite cres- 
cente i. d. pinnulis novellis imbricatis involutisque ferace; pinnis nu- 
merosissimis confertis sessilibus basi ovato-hastatis, inferioribus steril- 
ibus rotundato-obtusis, 2 cm longis, vix 1 cm latis ; fertilibus superioribus 
lanceolatis, 2.5 cm longis, 0.5 cm latis, acutiusculis, costa tenui sed 
manifesta media, nereis confertissimis numerosissimis obliquis, soris 
marginalibus nec prominentibus ca. 15 utrinque, 1 mm diametro, rotundis, 
indusio peltato-reniformi aspidioideo : faciebus laevibus, facie superiore 
ad insertionem sororum hinc inde punctis calcar eis notata; textura 
subcoriacea, pinnis articulatis et deciduis, colore ocliraceo-viridi opaco. 
Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 920, January, 1907. 
Between Nephrolepis cordifolia Presl and N. volubilis J. Sm. with a semi- 
indefinite growth of the leaf. Pinnae obtuse, very numerous, sori marginal, 
aspidioid, rachis chaffy. 
HU MATA Cav. 
Humata repens (L.) Diels, var. minuscula var. nov. 
Yar. aut subspec., a typo discrepans foliis minutis, 2.5 cm longis, 
2 cm latis, stipite brevi (2 ad 3 cm) tenui, lamina fertili a sterili haud 
diversa, breviter et late lobata; plantula omnino habitu H.. parvulae, 
excepta fronde fertili angustisecta hujus speciei. 
Luzon, Province of Rizal, Bur. Sci. 1815 Ramos, January, 1907. 
M ICROLEPI A Presl. 
Microlepia todayensis sp. nov. 
Amplissima, quadripinnatifida, stipitibus fasciculatis succulentis 100 
ad 150 cm longis, fronde 150 cm longa ovata; rhachi 1 cm et ultra crassa, 
rufo-straminea, lucente, furfuraceo-pilosa ; pinnis circ. 70 cm longis, 23 
cm latis, oblongis acuminatis versus basin aliquantum angustatis; costa 
costulisque ochraceis pilosulis, pinnis inferioribus remotis, superioribus 
magis confertis, alternis, ca. 25 utrinque, breviter petiolatis, basi anteriore 
auctis, trigono-oblongis acuminatis, mediis 12 cm longis, basi 4.5 cm 
latis, pinnulis ca. 14-jugatis, infimis petiolulatis, reliquis subsessilibus nec 
adnatis nec decurrentibus, basi anteriore auriculate auctis, infimis ante- 
rioribus 3 cm longis, basi ad costulain, caeterum usque ad alam plus 
minus angustam incisis, versus apicem lobatis, lanceolato-oblongis con- 
fertis, acutiusculis, lobis ultimis ovato-oblongis olitusis subintegris, 3 
ad 4 mm longis, nervis manifestis subtus prominentibus, in lobis furcato- 
pinnatis, obliquis, subtus pilis longis omnino obsit.is, soris impressis, 
minutis, raris, ad basin loborum plane intramarginalibus, saepius mediis, 
