HELICHRYSUM Sp. 

 PL XVII, figs. 20, 21. 



Fruits minute asymmetric, narrowed suddenly above and more gradually towards 

 the base ; covered with close set longitudinal nodose striae. 



Length 1.3 mm., breadth 0.6 mm. Swalmen. 



These fruits show a close resemblance to those of some species of Helichrysum, 

 and we have figured H. foetidum (fig. 19) for comparison. Our fossil is much more 

 finely striate. 



SENECIO Sp. 

 PI. XVII, fig. 22. 



Fruit long narrow ribbed and finely striate ; constricted suddenly into a small collar. 

 Length 2.2 mm., breadth 0.6 mm. Swalmen. 



A single fruit greatly resembling Senecio aquaticus (fig. 23), but with longer and 

 narrower collar and thinner ribs. 



CARDUUS 2 Spp. 

 PI. XVII, figs. 24, 25. 



Much damaged single specimens belonging to two different species of Carduus 

 have been found at Reuver; but beyond these we have seen nothing referable to the 

 Cynareae. Fig. 24 represents a species allied to C. nutans, with which it corresponds in 

 surface sculpture. Fig. 25 is a smoother form, apparently without ribs or transverse 

 sculpture; in these respects and in the large conical base of the style it agrees with 

 C. lanceolatus. Both these specimens are too imperfect for specific determination. 



CREPIS cf. BLATTAROIDES Vill. 

 PI. XVII, fig. 26. 



Fruits elongate, closely and regularly ribbed longitudinally, constricted imme* 



diately below the crown. 



Length 6.0 mm., breadth 1.5 mm. Swalmen 



We have one good specimen (fig. 26) and three or four damaged of this fruit. 



It is very near to Crepis blattaroides (fig. 27) a species of Central and Southern Europe; 



but it also resembles certain species of China. It is characterised by the great regularity 



of its longitudinal striae (with little trace of intermediate finer striae), and by the sudden 



and deep constriction just below the crown. 



137 



