30 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 13, No. 2 
cited. Hooker’s comments on Fée’s error in associating with it the plant 
now called Elaphoglossum dimorphum (Hook. & Grev.) Moore are of interest. 
2. Microstaphyla moorei (E. G. Britton) Underw. Torreya 5: 88. 1905. 
Acrostichum moorei E. G. Britton, Mem. Torrey Club 4: 273. 1895. 
Rhipidopteris rusbyi Christ, Farnkr. Erde 46. 1897. 
Elaphoglossum bangii Christ, Mon. Elaph. 99. 1899. 
Elaphoglossum mooret Christ, Bull. Herb. Boiss. II. 3: 148. 1903. 
Microstaphyla bangii Hieron. Bot. Jahrb. Engler 34: 539. 1904. 
Founded on specimens collected near Yungas, Bolivia, in 1890, by Miguel 
Bang (no. 558), of which two sheets are at hand. The specific name is in 
honor of Thomas Moore, whose fern collection in the Kew Herbarium is 
said to contain a specimen collected by Lechler “near Sachapata, on trunks 
of trees, and distributed as no. 2609, Plantae Peruvianae.’”’ Hieronymus 
also lists Lechler 2609 under this species, probably with correctness. An 
additional specimen has recently been received from Bolivia: On tree-trunks, 
among moss, Hacienda Simaco, on the trail to Tipuani, altitude 1,400 meters, 
January, 1920, Buchtien 5297; this agrees very closely with the Bang material. 
It is to be noted that Hieronymus cites also a Colombian specimen, col- 
lected in 1882 by Schmidtchen, the exact locality not stated. This, which 
has not been seen by the writer, not improbably pertains to the next species. 
3. Microstaphyla columbiana Maxon, sp. nov. 
Plants terrestrial, entangled in a loose mat. Rhizomes wide-creeping, 
30 cm. long or more, about 0.5 mm. in diameter, flexuous, sparingly branched, 
bearing a few distant roots, brownish, sulcate, flattish or irregularly trique- 
trous in drying, subpersistently paleaceous, the scales loosely appressed- 
imbricate, pale yellowish brown, membranous, translucent, 2 to 2.5 mm. 
long, narrowly deltoid-ovate, attenuate, attached above the closed sinus of 
the very deeply cordate base (the lobes widely overlapping), with a few, 
mostly basal teeth. Sterile fronds numerous, borne singly 1 to 5 em. apart, 
ascending, 8 to 18 em. long; stipes continuous with the rhizome, 3 to 7 em. 
long, about 0.5 mm. thick, brownish and terete at the extreme base, upward 
greenish and compressed, slightly alate at summit, deciduously paleaceous 
throughout, the scales ovate-oblong, acute, often coarsely dentate; blades 
lanceolate, caudate, 5 to 11 em. long, 2 to 3 em. broad just above the base, 
essentially pinnate at base, nearly so throughout; pinnae 5 to 10 pairs, - 
oblique, subopposite at base, mostly alternate above, distant (5 to 10 mm. 
apart on each side), linear-cuneiform, 1 to 3 mm. broad just above the nar- 
rowly decurrent base, dichotomously forked at or beyond the middle (the 
divisions 2 to 8 mm. long, the distal one usually the longer, one or both deeply 
retuse), or those toward the apex linear-subspatulate, merely retuse, the 
apical ones gradually reduced, finally evident as coarse distant serrations of 
the long-caudate tip; veins mostly arising in pairs at base of pinnae, once or 
twice forked, 4 branches usually occurring at middle o: pinna, 2 extending 
to each division, clavate; leaf tissue glabrous, dull green, membrano-herba- 
ceous, opaque, the venation seen with difficulty. Fertile fronds wanting. 
‘ Krypt. Gew. pl. 2; Second Cent. Ferns, pl. 91. 
