part 2] EEEGLACIAL FLORAS EBOM CASTLE EDEN. 129> 



Rueus ceat^gieolius Bunge. (PL IX, fig. 7.) 



Endoearp nearly semilunar, inflated, thick-walled ; ventral 

 margin straight, or slightly convex, with a very thick smooth 

 straight rim ; dorsal margin semicircular ; surface-sculpture of' 

 large deep pits. 



Length = P6 mm. ; breadth = 1 mm. 



The straight ventral and rounded dorsal margins, giving a semi- 

 lunar shape to the endoearp, mark it as a very distinct species. I 

 have only found the combination of characters seen in the fossil in 

 H. cratcegifolius (PI. IX, tig. 8), a native of China and Japan. 

 To this species, therefore, I have referred the fossil. 



GERAKIACE^:. 



Oxalis COENICULATA Linna-us. (PI. IX, fig. 9.) 



Seed ovate, flat, with nine strong transverse .ridges ; surface of 

 regular hexagonal cells with a central boss (gland?). 



Length'=:.l - 4 mm. ; breadth = \8 mm. 



The seeds of 0. corniculata and O. striata so closely resemble- 

 one another that it is difficult to distinguish between the species, 

 though it is possible to do so. The average size of the seeds of 

 O. corniculata is greater than of those of O. striata, the surface- 

 cells are smaller, and the boss less prominent, wherefore the surface 

 is smoother. O. corniculata frequently has nine ridges, 0. striata 

 eight. In all these respects the Castle-Eden species agrees with 

 O. corniculata (PI. IX, fig. 10), to which species I have referred 

 it. The British species 0. acetosella has longitudinal, not trans-' 

 verse ribs. 0. corniculata inhabits the temperate and tropical 

 regions of both hemispheres. 



Three specimens. Two of these were quite perfect and most; 

 beautifully preserved in solid pyrites. Unfortunately, these decayed 

 and disintegrated before they could be photographed. The third 

 specimen showed only the testa of one side of the seed. 



ANACAREIACE^. 



Ems dufelmensis, sp. nov. (PI. IX, fig. 11.) 



Endocarpium durum, subreniforme, parum complanatum, confra- 

 gosum, crasse irregulariter lacunosum. 



Endoearp hard, subreniform, somewhat flattened ; micropyle- 

 apical ; attachment basal, represented by a small foramen ; surface- 

 rough, with large irregular hollows. 



Length = l - 5 mm. ; breadth = l - 75 mm. 



The endoearp is similar to those of many species of fflius. In. 

 the recent species in which hollows occur, they are filled with resin. 

 It is very close to the Chinese species B. purijabensis var. sinica 

 Rekd. & Wils. (PL IX, fig. 12), for the seeds of which I am 

 indebted to the curator of the gardens of La Mortola. In shape- 



