The fruits at Tegelen vary considerably in outline, and some are very near th e 

 form next to be described; none of these Reuverian specimens however quite correspond 

 with those of the Teglian, though there is a close approach in some of them. 



DULICHIUM VESPIFORME var. TRIANGULARE var. nov. 



PI. Ill, figs. 13—16, 19, 20. 



NUX OVOIDEA, ACUMINATA, BASI IN STIPITEM ABRUPTIUS APICEQUE IN STYLUM GRA* 

 DATIM ANGUSTATA, TRIANGULARIS SAEPIUS QUAM PLANA. 



Nuts ovate pointed, narrowed somewhat abruptly into the stalk and gradually 

 into the style, more often triangular than flat; apex and style margined but not winged; 

 surface sculpture as in D. vespiforme; setae slender flattened at the base, terete above, 

 recurved hooks few. 



Length about 2.2 mm., breadth 1 mm. Reuver, Brunssum. 



This form in some respects is very near to the D. vespiforme of Tegelen. It re* 

 sembles D. vespiforme in size and comes close to some of the broader forms in shape ; 

 but the typical nut of D. vespiforme has the sides more parallel and is more rarely 

 triangular. Some of the flat rounded nuts seem to approach D. urceolatum; but they are 

 always smaller, the stalk is shorter, they are narrowed more gradually into both stalk 

 and style, they have not the flat wing, and they are frequently triangular, which 

 D. urceolatum is not. 



DULICHIUM URCEOLATUM Sp. nov. 

 PI. Ill, fig. 17. 



NUX GRANDIS, PLANA VEL BICONCAVA, URCEOLATA, BASI IN STIPITEM LONGUM APICEQUE 

 IN STYLUM LONGUM GRACILEM ABRUPTE CONTRACTA, MARGINIBUS ELEVATIS ET TUNC AD 

 EXTREMUM ACUTUM OBLIQUE FASTIGATIS, HOC STYLI PARTEM BASALEM SECUNDUM UT ALA 

 ANGUSTA PRODUCTO. 



Nut large flat or concave urceolate, narrowed abruptly into a long stalk and 

 abruptly into a long thin style; margins of nut raised and bevelled into sharp edges, 

 which continue up the base of the style as a thin wing; stalk equal to half the length of 

 the nut (not including the style); style as long as the nut; surface sculpture of the nut 

 large hexagonal pits; setae broad and strong, coarsely striate grooved dorsally; recurved 

 hooks on setae minute. 



Length (including stalk and style) 4.8 mm., breadth 1.5 mm. Swalmen. 



The typical form of this species (fig. 17) occurs only at Swalmen. 



DULICHIUM URCEOLATUM var. 

 PI. Ill, fig. 18. 

 From Reuver and Swalmen we get fruits which differ from the type of D. urceolatum 

 in being smaller, more ovate, with gradual passage into style and stalk, shorter stalk, 



67 



