Christensen: Two new bipinnatifid species of Alsophila. 213 
nahe Verwandtschaft der Flora von Nord-Celebes mit der papuanischen. 
Die Färbung der Blüten ist bei T. ficicola Schltr. hellgelb. 
P, S. Ausser den hier aufgeführten Orchidaceen habe ich noch 
etwa 6—10 Nummern, welche besonders kritischen Gruppen angehören, 
Sollten sich unter diesen noch einige Nova finden, so werden sie in 
meinen ,Orchidaceae novae et criticae* in dieser Zeitschrift ver- 
öffentlicht werden. 
XXIX. Two new bipinnatifid species of A/sophila. 
By Carl Christensen, Kopenhagen, 
(Originaldiagnosen.) 
The genus of tree-ferns, Alsophila, is extraordinarily rich in species 
in tropieal Andes; while most species are arborescent and have 2—4- 
pinnate leaves some few species are found, which are small and have 
bipinnatifid leaves, in general habit very much resembling bipinnatifid 
species of Dryopteris. Such small species are A. phegopteroidea Hook., 
A. pubescens Bak. and A. peladensis Hieron., which all are described as 
having a caudex from 1 to 3 meters high. To day I have the pleasure 
to make known two other species of these small Andine Alsophila, one 
of which is quite new. These two species are apparently both without 
a true caudex but have a short, erect rhizome. 
1. Alsophila Kuhnii (Hieron.) C. Chr., nov. comb. 
Syn.: Nephrodium Kuhnii Hieron. Engl. Jahrb. 34: 440. 1904; Dry- 
opteris Kuhnu C. Chr., Ind., 273, 1905. 
Colombia, Cordillera de Pasto, Lehmann no. 16. 
I have seen specimens of this in the museum of Berlin (Dahlem) 
and in the U. S. National Museum, Washington, both from the type- 
collection. It was very well described by Prof. Hieronymus, who con- 
sidered it a species of Nephrodium (= Dryopteris), but the structure of 
the sporangia and of the basal scales shows clearly that it is a true 
Alsophila. The scales are thick with pale lacerate-ciliate borders and 
similar to those of several other species of Cyatheaceae; scales of a similar 
structure are unknown in the genus Dryopteris. A, Kuhnii is the smallest 
species of the genus known til now. The lamina is 20 cm long and 
3 cm broad only. 
2. Alsophila phalaenolepis C. Chr., nov. spec. 
Caudice epigaeo verisimiliter nullo; rhizomate breve, erecto, 4— 
5 cm alto, 1—1!/, cm crasso, squamis imbricatis ovatis ad 1 cm longis 
3—5 mm latis rigidis crassis nitidis nigris marginibus sublaceratis pallidis 
dense onusto. Foliis paucis saepe binis. Stipitibus 10—20 cm lon- 
gis, strictis, usque ad !/, cm crassis, supra trisulcatis, cum rachi squa- 
mosis et pilosis atro-purpureis; squamis versus basin stipitis numerosis 
sursum sensim paucioribus et minoribus, basalibus iis rhizomatis simili- 
