4—5 sporangiis rotundis multiarticulatis compositi. ”’ 
Original specific description: ‘‘Ol. tronde bipinnata, 
rhachi tenui, pinnis multiiugis, pinnulis ovatis lata basi 
sessilibus alternis apice rotundatis crenulato-dentatis ap- 
proximatis, nervo primario flexuoso sub apice_ pluries 
dichotomo, nervis secundariis simplicibus dichotomisve. ”’ 
The present usage of Oligocarpia is that of Kidston’ 
whose definition is based chiefly upon Oligocarpia gut- 
biert. 
Kidston describes Oligocarpia as tollows: “‘Synangia 
circular, formed of 8 to 5 (rarely 6) pyriform sporangia 
with a prominent annulus composed of two rows of cells, 
which passes over the apex of the sporangia and bends 
down the sides of their free portion. A band of small 
narrow cells forming a stomium passes down the ventral 
surface of the sporangia and indicates the part at which 
the sporangia opened for the dehiscence of the spores. 
Spores tetrahedrally developed, smooth, with a triradiate 
ridge on their surface. The synangia are placed singly on 
the lateral veinlets, and frequently occupy almost the 
whole of the limb between the midvein and the margin 
of the somewhat reduced pinnule, or are situated some- 
what more to the margin. The veinlet on which the syn- 
angia are placed does not extend beyond them.” 
It will be observed that this diagnosis is in part un- 
satistactory. 
Oligocarpia vera Darrah sp.nov. 5 tigures. 
Frond probably large, tripinnatifid(quadripinnatifid / ); 
foliage pecopteroid ; rachis smooth, occasionally minutely 
punctate; primary pinnae unknown; ‘‘secondary”” pinnae 
alternate, oblique, departing at an angle of 60 degrees. 
Pinnules ovate, alternate, close, short and robust; apex 
obtuse, rounded. Pinnules thin, nervation distinct. Veins 
fork at a wide angle and traverse the lamina in a flexuous 
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