FLORA OF THE M.\ "MAN. 





.,.,. 



and emarginate at the apex, 1*5 inch broad, and one inch long, with 

 I large broadly oval acuminate nucleus, ami the usual mesial line. 

 We have thus four distinct species of these mysterious winged seeds 



from the Devonian. They must have been fruit.- of trees, bul whether 

 of phsenogams, or enormous winged spore cases of some cryptogamoni 



plant, is uncertain. Their marginal wings show no venation what- 

 ever, though preserved in shales which show very well the venation 

 of ferns. The margin must have been membranous, and the oucleue 

 thick and dense, that part appearing as a comparatively strong graphitic 

 film, while the wing or margin is exeessively tenuous. 



Fig. 194. — Devonian Fruits, etc 



A 



A, Cardiocarpum conmtnm. 



B, Cardiocarpum acutum. 



C, Cardiocarpum Crampii. 



D, Cardioeavpum RaiUyi. 



E, Trigonocarpum raccmosum. 

 (l: 1 ,,!-:-.) Fruits enlarged. 



F, Anthollthea Devonicns. 

 (i. Annularis acamin 



II. \stiiviplivllitcs aciciiluris. (H 1 ), Leaf. 



II 2 , Fruit of the same. 



K, Cardiocarpum (J young of A). 



L, Pinnularla dlspal&na. 



Trigonocarpum racemosum, Dawson (Fig. 194, E). Ovate, ob- 

 tusely acuminate, in some specimens triangular at apex. In Battened 

 specimens the envelope appears as a wing. Attached in an alternate 

 manner to a thiek, flcxuous, furrowed rachis. This is evidently B 

 fruit or seed, borne in a racemose manner on a stout rachis. In 

 some specimens the seeds are close to each other, in others more 



