98 Arber. — A Revision of the Seed Impressions of the 
testa subcircular or heart-shaped, symmetrical or asymmetrical around the 
sclerotesta. Micropyle usually fairly long. 
(i) Samaropsis crassa (Lesq.) (Text-fig. 4). 
Text-fig. 4. Samaropsis crassus (Lesq.). After Lesquereux. 
Type Cardiocarpus crassus , Lesquereux, ‘ Coal Flora Pennsylv.,’ 
vol. iii, p. P. 812, PI. C 1 X, Fig. 12, PI. CX, Figs. 6 - 9, 1884. Recorded from 
the Middle Coal Measures of the Leicestershire, and the Lower Coal 
Measures of the Lanarkshire coalfields. 
Seeds small, about 1 cm. long, oval or subcircular. Nucule large, ovate. 
Wing narrow, nearly equally symmetrical all round the nucule. Micropylar 
region pointed. 
(2) Samaropsis emarginata , Berger (Text-fig. 5). 
Type Cardiocarpon emarginatum , Berger, ‘ De Fruct. et Semin.,’ p. 24, 
PI. Ill, Fig. 35, 1848. Recorded from the Lower Coal Measures of 
Ayrshire. 
Text-fig. 5. Samaropsis emarginatus (Berg.). 
Seeds of fair size, circular, 1-3-2 cm. in diameter. Nucule large, cordate, 
pointed above. Wing very broad, but narrower at the base than elsewheie. 
Micropylar region obtuse. 
(3) Samaropsis fluitans (Daws.) (PI. VI, Fig. 18). 
Type Cardiocarpum fluitans , Dawson, ‘ Quart. Journ. Geol. Soc.,’ 
vol. xxii, p. 165, PI. XII, Fig. 74, 1866. Recorded from the Upper, Transi- 
tion, and Middle Coal Measures of the Southern, Midland, and Pennine 
coalfields. 
Seeds oval, 8-15 mm. long, nucule ovate, 4-5 mm. long and 4-6 mm. 
across. Wing often narrow at the base, produced above the nucule for 
2-4 mm. around the micropyle. Micropylar region acute. 
(4) Samaropsis Meachemi (Kidst.) (PL VI, Figs. 16 and 17). 
Type Cardiocarpus Meachemii, Kidston, ‘ Trans. Roy. Soc. Edinburgh,’ 
vol. xxxvi, PI. II, p. 330, PI. — , Figs. 5-7, 1891. Recorded from the 
Middle Coal Measures of the Kent and South Staffordshire coalfields. 
