from the Lanarkshire Coal-field. 481 



Sphenopteris obtusiloba, Brongniart. 

 Sphenopteris obtusiloba, Brongniart, Hist. d. vege"t. fos8. p. 204, pi. liii. 



Sphenopteris irregularis, Andrae, Vorwelt Pflanzen, p. 24, pi. viii. pi. ix. 



fig. 1. 

 Sphenopteris irregularis, Sternberg, Vers. ii. p. 63, pi. xvii. fig. 4, 



p. 152, pi. ix. fig. 7. 

 Sphenopteris latifolia, Lindley & Hutton, Fossil Flora, vol. ii. pi. clvi., 



vol. iii. pi. clxxviii. 

 Sphenopteris trifoliolata, Brongniart (not Artis), Hist. d. veg6t. foss. 



p. 202, pi. liii. fig. 3 (excl. refer.). 



Remarks. Exceedingly fine specimens of this were col- 

 lected. 



Locality. Blaes between Kiltongue and Drumgray Coals, 

 Whiterigg, near Airdrie. 



Sphenopteris furcata, Brongniart. 



Sphenopteris furcata, Brongniart, Hist. d. vege"t. foss. p. 179, pi. xlix. 



figs. 4, 5. 

 Diplothmema fttrcatum, Zeiller, Ve"g£t. foss. du terr. houil. de la France, 



p. 45, pi. clxii. fig. 3. 



Locality. Cutting, new Caledonian Railway, Airdrie. 



Sphenopteris^ sp. 



Remarks. The specimens I place here have a great resem- 

 blance to Sphenopteris rotundifolia, Andras (' Vorweltliche 

 Pflanzen,' p. 37, pi. xii.), but, as it is necessary to use great 

 care in recording the occurrence of a species, I will refrain at 

 present from applying the specific name of " rotundi folia, 

 Andra?," to them, and await further evidence before definitely 

 determining this fern. But to whichever species this plant 

 belongs, these examples are the first I have seen. 



Locality. Blaes between Kiltongue and Drumgray Coals, 

 Whiterigg, near Airdrie. 



Mariopteris, Zeiller. 



Mariopteris, Zeiller, BuD. Soc. Geol. de France, 3 e se"r. vol. vii. p. 92 j 

 V6get. foss. du terr. houil. de la France, p. 68 (from vol. iv. de l'ex- 

 plication de la carte geologique de la France, 1880). 



This genus was founded by Zeiller to include certain ferns 

 which, among other characters, are distinguished by a pecu- 

 liar dichotomizing of their pinnae. The primary pinnae are 

 attached to the rachis by a naked stalk, which bifurcates at a 

 very obtuse angle ; each of the forks of this first dichotomy 

 again bifurcates, forming the secondary pinnse, on which are 

 borne the tertiary pinnae, which in turn support the pinnules. 



