NILSSONIA. 223 



Genus NILSSONIA, Brongniart. 

 [Ann. Sci. nat. vol. iv. p. 200, 1825.] 



The characteristics of this genus have already been discussed at 

 length in the second volume of the Wealden Flora, 1 and need not 

 be recapitulated. 



1. Nilssonia compta (Phillips). 



2. Nilssonia mediana (Leckenby, ex Bean MS. 1 ). 



3. Nilssonia tenuinervis, iNathorst. 



1. Nilssonia compta (Phillips). 



[Geol. Yorks. p. 148, pi. vii. fig. 20.] 

 (PI. IV. Fig. 5 ; Text-figs. 39 and 40.) 



1828. Pterophyllum Williamsonis, Brongniart, Prodrome, p. 95. 



1829. Cycadites comptus, Phillips, Geol. Yorks. p. 148, pi. vii. fig. 20. 

 1833. Pterophyllum comptum, Lindley & Button, Foss. Flor. vol. i. pi. Ixvi. 

 1841. Pterophyllum comptum, Morris, Annals, voL vii p. 118. 



1848. Nihsonia compta, Bronn, Ind. Pal. p. 812. 



1849. Nilssonia compta, Brongniart, Tableau, p. 106. 



1850. Nilssonia compta, Unger, Gen. spec, plant, foss. p. 295. 

 1854. PteropJujUum comptum, Morris, Brit. Foss. p. 19. 



1856. Cf. Daneeites Hecri, Zigno, Flor. foss. Oolit. vol. i. pi. xxv. figs. 1-4. 



1863. Cf. Pterophyllum princeps, Oldham & Morris, Pal. Ind. p. 23, 



pis. x.-xiii. 



1864. Pterophyllum comptum, Leckenby, Quart. Journ. Geol. Soc. vol. xx. 



p. 77, pi. ix. fig. 1. 



1867. Cf. Nilssonia polymorpha, Schenk, Flor. Grenz. pis. xxix.-xxxi. 

 1870. Pterozamitcs comptus, Schimper, Trait, pal. veg. vol. ii. p. 147. 

 1873. Pterophyllum comptum, Zigno, Flor. foss. Oolit. vol. ii. p. 20. 

 1875. Pterophyllum comptum, Phillips, Geol. Yorks. p. 227, pi. vii. fig. 20. 



1877. ? Anomozamites Schmidtii, Heer (77 2 ), pis. xxiii. and xxiv. 



1878. Cf. Nihsonia polymorpha, Nathorst, Flor. Bjuf, p. 72, pi. xv. 



figs. 3-5. 



1883. Nihsotiia, compta, Schenk, in Richthofen's China, p. 262, pi liv 

 fig. 2. 



1 Seward (95), p. 50. 



