plant was not M. tigrinum, but no suggestion as to its 

 identity could be offered. With a view to its ultimate 

 determination one of the five plants was presented to 

 the Kew collection, where it has thriven well under the 

 conditions suitable for other members of the genus. 

 This plant flowered for the first time in October, 1913, 

 and forms the subject of our illustration. It proves to be 

 a hitherto undescribed member of the Ringentia section, 

 nearest, as was originally surmised, to M. tigrinum. The 

 leaves, however, besides being of a darker green, are less 

 strongly marginally toothed, while the upper surface, 

 instead of being smooth, is tuberculate, each tubercle 

 having a white central spot. The flowers in M. tuber- 

 culosum are larger, and the styles are united below in a 

 column, their upper free portion being strongly recurved, 

 whereas in M. tigrinum the styles are free and nearly 

 erect throughout. 



Description.— Herb, small and stemless. Leaves 6-8, 

 somewhat spreading, deltoid-ovate, rather blunt, green, 

 |-1 in. long, f-£ in. wide, over ^ in. thick, somewhat 

 convex above and beset with blunt, whitish tubercles, 

 convex beneath and finely white-punctate, tip com- 

 pressed-triangular. Flowers nearly sessile, 1^ in. across. 

 Calyx campanulate; lobes oblong, over * in. long. 

 Petals very many, spreading, yellow, f-f in. long. 

 btytes 5, connate at the base, much recurved above, 

 papillose. 



Figs. 5 and 6, anthers ; 7, style and stigma :—all enlarged. 



