366 
SPHENOPTERIDEZ. 
Including Sphenopteris, Hymenophyllum, Eremopteris, 
Coniopteris, Steffensia, Trichomanides. 
Fronds petiolate, simple or divided, pinnate, bi-tri- 
pinnatifid. Pinnules connate or lobate. Lobes dentate or 
subdivided. Costa fine and delicate, often bifid or free at 
the top; veins diverging above, or produced to the sinus of 
the lobes or teeth. Venules either indistinct or only 
proceeding from the lower part of the secondary nerves. 
SPHENOPTERIS LOBIFOLIA (Morris). 
Frond bipinnate ; pinne, somewhat linear, elongate, alter- 
nate; pinnule membranous, those of the lower pinuz equal, 
ovate oblong, contracted at the base, approximate, with three 
nearly equal rounded lobes on each side, and a terminal 
obtuse one; the veins proceeding into each lobe, divide near 
the mid rib, the upper one being furcate; the pinnule 
towards the apex of the frond are rather sharply three-lobed 
and decurrent, the veins becoming furcate in each lobe. 
Localities.—Tasmanta—New Town, York Plains, Longford (?), 
N.S. Wates—Newcastle, Mulimbimba. 
References.— Morris, Strezelecki’s Phys. Descrip. N.S. Wales and 
V.D. Land, 1845, p. 246, t. 7, f.3; M‘Coy, Annals, Nat. Hist., 
1847, xx., p. 149 ; ibid, Proc. Soc. V.D. Land, 1851, 1a 306 : 
Tenison-Woods, Proc. Lin. Soc. N.S. Wales, 1883, vol. viil., pt. 1, 
p. 88; R. Etheridge, jun., Cat. Aust. Fossils, 1878, p. 100. 
SPHENOPTERIS ALATA (Brong.). 
Frond tripinnate, rachis winged, pinne pinnate, above 
pinnatifid, with decurrent sessile pinnules, lower pinnatifid, 
with three to six bluntly toothed segments, upper ones 
inciso-dentate, veins either simple or forked, diverging 
slightly into each lobe from the costa at an acute angle. 
& Localities.—-TASMANIA—New Town, Longford (2), N.S. WALES; 
—Mulimbimba. 
References.—Brongmiart ( Pecopteris), Hist. Vég. Foss., 1828, 1, 
Dp. 361, t, 1275 ( Sphenoptert ws var. exilis) Morris, Strezelecki’s 
Phys. Descrip. N.S. Wales and V.D. Land, 1845, p. 246, t. 7, £4; 
M‘Coy, Annals Nat. Hist., 1847, xx., p. 149 ; ibid, Proc. R. Soc., Ay 
VED: Land, iTS ILS! Te 306 ; Schimper Traité de’ Pal. Vég., 1869,. 
ip: 4s "Tenison- “Woods, Proc. Lin. Soc., N.S. Wales, 1883, vol. 
vil, pt. ab 1) Os let Etheridge, jun., Cat. Aust. F ossils, 1878, 
Pp. 99. 
SPHENOPTERIS ELONGATA (Carr). 
Frond dichotomously divided, each division irregularly 
pinnate ; pinne simple, bi-furcate or irregularly pinnate ; 
segments narrow, linear, slightly tapermg upwards to the 
somewhat blunt apex, the costa sending out simple veins 
which run along the middle of each segment. 
It is doubtful whether the Tasmanian variable form, the 
rhachis of which, sometimes scarcely a millimetre in width, 
