(j Annals of the South African Museum. 



1877. Thyrsopteris elongata Geyler, Palseontogrtaphica, pi. xxx., 



fig. 5, pi. xxxi., figs. 4, 5. 



1878. Sphenoptcris Boemeri Dupont, Bull. Ac. E. Belg., vol. xlvi., 



[ii.] p. 396. 

 1881. SplLeno2')teris Mantelli Heer, Secc. Trab. Geol. Portugal, 



1881, p. 12, pi. xi., figs. 1-5 ; pi. xii., figs. 26 and Ihh. 

 1881. Splicnoptcris valdensis Heer, loc. cit., p. 14, pi. xv., figs. 9, 



10, and 13 ; pi. xvi., fig. 5b. (The other figures are 



doubtful.) 

 1889. Sphenoptcris Mantelli Fontaine, Potomac Flora, p. 91, pL i., 



figs. 1 and 2. 



1889. Onychiopsis elongata Yokoyama, Journ. Coll. Sci. Imp. 



Univ. Japan, vol. iii., pi. i., p. 27; pi. ii., figs. 1-3; 

 pi. iii., fig. M ; pi. xii., figs. 9, 10. 



1890. Onychiopsis elongata Nathorst, Denksch. k. Ak. Wiss. Wien, 



pi. ii., fig. 6 ; pi. v., fig. 3 ; pi. vi., fig. 5. 

 1894. Onycliiopsis elongata Yokoyama, Journ. Coll. Sci. Univ. 

 Japan, vol. vii., pt. iii., p. 215 ; pi. xx., fig. 8 ; pi. xx., 

 figs. 1, 4. 



1894. Sphcnopteris (Davallia) Mantelli Saporta, Flor. Portugal, 



pi. xiii., figs. 5, 6; pi. xxiii., figs. 1, 2 ; pi. xxviii., fig. 2 ; 

 pi. xxix., fig. 1 ; pi. XXX., figs. 9, 10 ; pi. xxxi., figs. 1, 2. 



1895. Sphcnopteris Mantelli Ward, Potomac Form. p. 392. 



1896. Onychiopsis Mantelli Ward, Lower Cret. Europe and 



America, p. 483. 

 1896. Onychiopsis elongata Ward, ihicl. 



The following definition of Onycliiopsis mantelli is quoted from the 

 first part of the Catalogue of Wealden Plants in the British Museum. =■= 

 The fertile segments represented in the English specimens have not 

 so far been found in the South African material. " Frond tripinnate, 

 ovate lanceolate, rachis winged and prominent ; pinnas lanceolate, 

 alternate, approximate, given off from the main rachis at an acute 

 angle. Pinnules alternate, narrow, lanceolate acuminate, uninerved, 

 of nervation type Gcenopteridis ; the larger ones serrate and gradu- 

 ally passing into pinnae, with narrow ultimate segments." 



[" Fructification in the form of sessile or shortly stalked linear 

 ovate segments with rugose surfaces, and terminating usually in a 

 very short awn-like apical prolongation."] 



The name Sphcnopteris viantclli was substituted by Brongniart f 



* Seward (94), p. 43. f Brongniart (28), p. 50 ; (28-') p. 170. 



