32 Described from e living plant kindly sent to me by Dr. 

 iferloth, who hps included under the number 692C vihat appear to me 

 to be tvno distinct species. One of them is the type of G, kubus- 

 nnum, and is described ebove this has the growths densely crovvded. 

 The other form has the growths rather loosely clustered, they are 

 4-5 lines long and smaller in diameter than the plant above des- 

 cribed, 



33 are elliptic instead of circular in outline end convex on the top, 

 but the markings are very similar to those of the plant described, 

 but fewer. Until both flower I cannot determine if these are dis- 

 tinct, as I sunect, or only varieties of one another, 



G. limbatum, N. E. Br.— Grov/ths 5-7 lines high, 2^-4 lines 

 broad and 2^-4 lines thick, somev-hat obovoid, slightly notched 

 at the ton with a slight and very obtuse ridge transverse to the 

 notch, circular in outline viewed from above (type ^, , on a small 

 scale); orifice about 1 line long, with gaping, triangular lips; 

 surface smooth, glabroi^s, green, with a broad dark green line a- 

 round the orifice and usually a dark green( or under continuous sun- 

 shine nrobably pumlish) line along the top of the lobes, with or 

 without another line or dot or two on each side of it, which are 

 not raised above the general level, ^lovrers not seen; stated by 

 Dr. l^rloth to be nurple. 



Little Namaaualand; near Steinkof, ^^eyer (Ivlerloth 6508) . 



This is evidently closely related to ^. ectypum, N, E, ^t» , 

 but as cultivated by myself under the same conditions it appears 

 to be distinct. It is rather larger and of a light er green colour, 

 the orifice is less defined, the dark marking or are not raised 

 as they ere in C, ectynum, end v^hen examined under a strong lens 

 the microscopis structure of their surface is quite different; 

 In G. ectypum the dark markings under a lens appear very smooth and 

 shinging or polished, and the stoma ta (seen as minute v/hitish dots) 

 ere in a network of faint detiressions and appear as paler patches 

 beween the dark polished lines on the top, but in G. limbatiim the 

 dark markings are not so shim'np; and are seen to be minutely and 

 densely pitted, and the stoma ta do not form pale patches between 

 them; the corolla is light rose-pink in C, ectypum, but is stated 

 to be nurple in G, limbatum by Dp, Mgrioth, and when better known 

 may nrove to show a difference in structure. 



N. E. Brown 



(To be continued, ) 



I.!ESEI«iBRYANTHE]inJM. 



Gard. Ghron. HI. 81 : 52, 1927. 



(Gontinued from page 33, ) 



52 Ccjnophytum Marlothii, N, E. Bp. (Fig. 30).— Plant as received 

 about t-X inch high, consisting of a few lax and rather distant 

 forked stems, each ultimate branch 4-6 lines long, gradually in- 

 creasing in diameter upvrerds end 2|--3 lines in diameter at the top, 

 densely clothed with some what smooth, closely imbricating sheaths; 

 rather hard in texture, dark brown edged with whitish . Grov/ths 

 3-4 lines long and 3-4 lines in diameter qbconic, circular or 

 broadly elliptic at the nearly top (type ^ . ) , with a depressed 

 orifice f-1 line long; surface smooth, glabrous of a greyish 

 glaucous-green, thinly sprinkled with separated darke green dots 



