230 KEY TO BRITISH BI7BI. 



drupelets, and smaller ones irregularly scattered over the surface ; 

 beak strongly recurved, and then incurved. Embryo curved to 

 two-thirds of a circle, or rather more. 



forms 



fruit 



sulcatus mihi ined., but only half the size, and without the furrows, 

 bossulated rather than muricated, and with two strong teeth at the 

 base of the fruit, projecting downwards. 



Australia. In the Yas and Murambridge country, 1831, G. 

 Bennett in Herb. Mus. Brit. ! Van Alpin River, F. Mueller in 



Herb. Kew ! 



Specimens gathered by the Abbe David in " Mongolia oriental, 



No. 1919/' may belong here, but sufficient specimens have not been 



seen to warrant such reference as yet. 



(To be continued.) 



AN ESSAY AT A KEY TO BRITISH EUBL 



By the Rev. W. Moyle Rogers, F.L.S. 



(Continued from p. 205.) 



33. R. MYRiCiE Focke. — St. arcuate-prostrate or high-arching, 

 bluntly angular with convex faces or roundish, considerably or 



rather thinly hairy. Prickles few, short, subulate, declining from very 



broad base. L. 3-nate, or a few subquinate. Lts. almost regularly 



dentate, green and hairy on both sides; term, oval, acuminate, cordate. 



Pan. narrow; branches short, nearly equal, I- or few-flowered. Sep. 



externally green, hairy and aciculate, very narrow, with long acuminate 



point, embracing fr. Pet. oblong, narrow. Stam. about equalling 



styles. 



b. R. xirescens G. Braun. — L. 5-nate. Term. It. ovate, narrowing 



very gradually into the long acuminate point from cordate base. Sep. 



patent in fr., or rarely erect. 



Forms of type and var. with numerous very slender and unequal 

 stalked glands, and a few slender declining acicles (but no prickles) on 



pan., and more or less mixed armature on st., have been found in 

 plenty by the Rev. A. Ley on Trelleck and Beacon Hills, Monm. 

 the sole representatives of the species (so far as I know) yet recorded 

 in the British Isles. 



34. R. Salteri Bab. St. arcuate-prostrate, angular, sulcate, 

 subglabrous, the few hairs being short and patent, with an occasional 

 stalked gland and acicle. Prickles slender, subpatent or declining 

 from dilated compressed base. L. 5-nate-pedate. Lts. thin, coarsely 



and doubly dentate-serrate o) 



'A 



serratures becoming simpler and more distant below, thinly hairy 



term 



cuspidate-acuminate, subcordate. Petiolules thickly clothed with 

 rather short patent white hairs. Pan. narrowly subpyramidai ; cylin- 

 drical above, with many few-flowered slender subpatent branches, 



