482 PEOFESSOE HEEE ON THE FOSSIL FLOEA OF NOETH GREENLAND. 
XXXI. Rhamxeae. 
66. Zizyphus hyperboreus , Hr., Plate L. fig. 20. El. Foss. Arct. p. 123. 
In my ‘Flora Arctica’ I could only describe two fragments of this ; but Mr. Whymper’s 
collection contains a larger and better preserved leaf. It is elliptical, acuminate, and 
toothed. The lateral principal nerves reach the apex, and are united by numerous 
secondary ones, which specially distinguishes this species from Z. ovata, Weher. 
67. Paliurus Colombi, Hr., Plate L. figs. 18, 19. FI. Foss. Arct. p. 122, pis. xvii. fig. 2 cl ; 
xix. 2, 4. 
The collection contains a twig, and some very fine entire leaves of this species from 
Atanekerdluk (Plate L. fig. 18). Fig. 19 is a small leaf, with a rounded base. 
Yar b . foliis margine antice denticulatis . Ilal>. Kudliset (Plate XLI. fig. 12). The 
form and nervation agree with the leaf from Atanekerdluk, but the margin presents 
some small teeth. 
68. Phamnus Hridani, Ung. FI. Foss. Arct. p. 123, pis. xix. figs. 5-7 ; xlix. 10. 
An almost entire leaf, agreeing with that figured in the 6 Flora Arctica.’ 
XXXII. Anacardiace/e. 
69. Rhus bella , Hr., Plate LYI. figs. 3-5. Foliis compositis, foliolis lanceolatis, utrinque 
attenuatis, breviter petiolatis integerrimis, lateralibus oppositis ; nervo primario dis- 
tincto, nervis secundariis camptodromis, debilibus. Hab. Atanekerdluk. 
This is nearly related to Bhus xanthoxyloides , Ung. (Syll. PL p. 45, pi. xxi. fig. 13), but 
the leaflets are larger, narrower, and provided with a short petiole. Several specimens 
present leaflets lying together ; but it is not possible to decide whether the leaf has been 
palmate or pinnate. A fine leaf of B. xanthoxyloides from Salzedo is pinnate ; it is 
therefore probable that the nearly related Greenland species is similar. The leaflets 
gradually taper towards the base, and are entire ; the secondary nerves are pretty 
numerous, delicate, and sometimes obliterated. PL xi. fig. 3, b of my ‘Flora Arctica’ 
perhaps belongs to this species. 
70. Bhus arctica , Hr., Plate XL. fig. 5 e, e. Foliolis oblongis, grosse dentatis; nervis 
secundariis angulo acuto egredientibus, craspedodromis. Hab. Atanekerdluk, upon 
the same stone with Hemitelites Torelli and Cornus fer ox. 
Two leaflets, which I believe belong to a compound leaf (Plate XL. fig. 5 e), having 
unequal sides. They are toothed, and the teeth are large and unequal. The primary 
nerve is little stronger than the secondary nerves, which spring at acute angles, and 
reach the teeth. The systematic position of these two species is still doubtful. 
