British Coal Measures. 
103 
one fairly prominent ridge, slightly tapered at one extremity, rounded at the 
other. 
(9) Radiospermum problematicum , sp. nova (PL VII, Fig. 37). 
Type No. 2669, Carbon. Plant Coll., Sedgwick Museum, Camb. From 
the Middle Coal Measures of the Wyre Forest coalfield. 
Seed ovoid, about 4 cm. long and 2 cm. across at its greatest breadth, 
broadly pointed at one end and rounded at the other, at which it splits up 
into several valves. Testa smooth, with very fine and close discontinuous 
striae, and more than five (? ten) not very prominent, and somewhat distant 
longitudinal ridges. 
(10) Radiospermum Sinclairi (Arber) (PI. VII, Figs. 33-34). 
Typ zLagenostoma Sinclair Arber, ‘Proc. Roy. Soc. London,’ vol. B. 76, 
p. 251, PI. II, Figs. 7-1 1. Recorded from the Lower Coal Measures of the 
Ayrshire coalfield. 
Seed small, elliptical-oblong in shape, 4-5*5 long and 1-5-3 mm - 
broad. Testa smooth, slightly ridged longitudinally. Apex notched or 
fluted. Cupule 8-9-5 mm. long, sac-like in form, prominently ridged longi- 
tudinally, and divided at the apex into a number of lanceolate, erect lobes. 
Genus Neurospermum, gen. nova. 
Seeds large, oval or subcylindrical, not winged. Testa with numerous 
fine, parallel, longitudinal striations. 
Neurospermum Kidstoni , sp. nova (PI. VIII, Fig. 47). 
Type, cf. Rhabdocarpus , sp. Kidston, ‘ Phil. Trans. Roy. Soc.,’ Ser. B, 
vol. cxcvii, p. 1, PI. 1 , 1904. Recorded from the Middle Coal Measures of 
the South Staffordshire coalfield. 
Seed cylindrical, about 2-8 cm. long and 1-1-4 cm. across, contracted 
towards the apex into a somewhat sharp point. 
Genus Schizospermum, gen. nova. 
Seeds of medium size, ovately triangular, splitting at the apex into 
three valves along the angles of the triangle, each valve having usually 
a median longitudinal ridge. At the base a foramen occurs, through which 
an inner cast is seen. 
Schizospermum Noeggerathi (Sternb.) (PI. VIII, Figs. 48-50). 
Type Palmacites Noeggerathi, Sternberg/ Vers. Darstell. Flora Vorwelt,’ 
Heft 4, p. xxxv, PL LV, Figs. 6 , 7, 1826, Recorded from the Upper, Tran- 
sition, and Middle Coal Measures of various coalfields in the South of 
England, South Wales, and the Pennine fields. 
Seeds short, ovoidly triangular, 2-5-4 cm. long, 1*2-3 cm - broad, rounded 
at the base, obtusely pointed at the apex, splitting into three valves along 
the angles of the triangle, each valve having a less well-marked median 
ridge. Foramen at base large. 
