Card. Chron. HI. 88: 278. 1930. 

 (Continued from page 8.) 



378 V/hen foundlna: the genus Nananthus in The Gardeners ' Chronicle, 

 1925, Vol. LX^III, p. 433, I suspected that the plants I included 

 in it might possibly belong to two different genera, because some 

 of the speces had all the p tals spreading in one plane and the sta- 

 mens collected into a cone, while others had the ptals somev/hat 

 laxly recurved, sr^reading in different planes or series, and the sta- 

 mens in a cylindric mass. But I did not venture to separate them in- 

 to different genera because "ruit of the latter group was not avail- 

 able. All the fr'^its (belonginf? to two species) J- then possessed 

 belong to the grour^ with the stamens in a cone, -^^aving now obtained 

 fruit of one species of the other group, I find it so distinctly 

 different in structure that, taken in Conjunction with the different 

 floral characters, I now separate it as a distinct genus. 



Beside these, there is a small group of plants of the same 

 alliance thpt have hi the -to remained under ^'esembryanthemiim, or 

 have taken into consideration. These are all more or less similar 

 in habit, being either very dwarf and forming in big clumps, or 

 are stemless or nearly so, with a firm, fleshy rootstock and rosettes 

 of crowded leaves differing in form, and whose floral and fruit 

 characters differ considerably. And it will be convenient to deal 

 with them here as forming one groun of nearly allied genera. There- 

 fore a key is here given to the genera into which I nov/ divide this 

 group, follov/ed by a descriptive account of them. In the key, leaf 

 and floral characters are given primary importance, because they are 

 those that the cultivator becomes acouainted with, while fruit is 

 not often seen under cultivation in Surope, although the fruit- 

 characters of each genus distinctly differ from those of the other 

 genera of the group, I regret that some of the descrir^tions are 

 very imperfect, but as they have never been adaouately described, 

 and I have been unable to obtain materia], to make the descriptions 

 more comrlete, they must await the advent of the next monographer. 



1. Leaves opr^osite, neither dotted, warted nor pustulate. 2 



Leaves O'^posite, often crowded in rosettes, either smooth 

 and distinctly marked v/ith immersed dots, or slightly 

 rough from raised dots or small white or greenish vrarts 

 or pustules, glabrous or covered with microscopic points, 

 and then somev/hat velvetj?- to the touch. Flowers expand- 

 ing in the morning or afternoon. * Z 



2, Leaves fl'=-ttened, smooth and velvety-puberulous, v^hitish- 



green. Flowers expanding after 5 p.m. C^iyx sub-equally 

 5-lobed. Fetals in 3 or 4 series. S-trniens erect, not 

 collected into a cone. Stjgmas 10-13. Sxpandin --keels 

 of fruit with avm-like tins and short, broad, marginal 

 wings that are united in pairs betv/een the valves. Cells 

 roofed v^ith cel].-v;ings, no placental bubercle. ^eilanthe. 



Leaves acutely trigonous, very smooth and quite glabrous,, 

 ^lant forming larse clumps with short, stout, densely 

 Leafy branches. Calyx sub-equally 8-lobed and the lobes 

 keeled. Stigmas end valves and cells of the fruit 7 or 

 S. Sxpandinr- -keels narrowly diverging from the base r nd 

 much raised, thin with acute, minutely-toothed edges and 



