DULICHIUM SPATHACEUM var. MARGINATUM var. nov. 



PI. Ill, figs. 5, 6. 



NUX QUAM IN TYPO BREVIOR, LATIOR BREVIUSQUE STIPITATA, MARGINE ANGUSTO IN 

 ALAM AD STYLI BASEM ABEUNTE INSTRUCTA. 



From Reuver we get nuts which apparently belong to a variety of D. spathaceum. 

 Compared with typical nuts they are more ovate, shorter, broader, more shortly stalked, 

 and have a narrow margin which develops into a narrow wing at the base of the style ; 

 in cellsstructure they resemble D. spathaceum. 



Length 3 mm., breadth 1.1 mm. Reuver. 



For the present we think that this fossil should be left as a variety of the living 

 species, though in its robust form it differs noticeably from the American fruits of 

 D. spathaceum. 



DULICHIUM SPATHACEUM var. ELLIPTICUM var. nov. 



PI. Ill, fig. 7. 



NUX AMBITU ELLIPTICA, ANGUSTE MARGINATA, SUPERNE IN STYLUM PLANUM INFER* 

 NEQUE IN STIPITEM BREVEM GRADATIM ANGUSTATA. 



At Swalmen a few fruits of another variety of D. spathaceum have been found. 

 The nut is flattened, elliptical, narrowed gradually into the flat style and short stalk, 

 narrowly margined ; base of style slightly winged ; surface sculpture of small hexagonal 

 pits, shallower and rather smaller than those of the type ; setae grooved on back, nar* 

 rower and more terete than those of the type. 



Length 2.8 mm., breadth 1.1 mm. Swalmen. 



We are uncertain whether this should be referred to a distinct species, or 

 whether it is a variety of D. spathaceum, from the type of which it differs greatly. Only 

 a few specimens occur, all at Swalmen ; all are more or less distorted, probably because 

 the walls are thin. Till more material is forthcoming we prefer to consider this as a 

 varietal form. 



DULICHIUM VESPIFORME Reid. 

 PI. Ill, figs. 8—12. 



As the illustrations of this species, described by us in 1908,* were not altogether 

 satisfactory, and more is now known about the genus, we have rephotographed five 

 of the type*specimens, for comparison with the newly discovered forms. 



The year after we described this species, Dr. J. Stoller (Joe. cit.) announced the 

 discovery of the same or an allied form in the interglacial deposits of Lauenburg and 

 Friedrichshagen, and as far as we can judge from his figures this determination is correct. 



* On Dulichium vespiforme sp. nov. from the brickoearth ofTegelen. Koninkl. Akad. van Weten* 

 schappen te Amsterdam. Versl dev Afdeel. Natuurk. Dl. XVI, p. 898. 



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