450 th--^t it mp.y Vie ? v??riety of C. vegum, but until I am able to 

 conncre its flov^ers I onnnot decide. 



I hpve mentioned this because it indicates ho\'/ very diffi- 

 cult it is to n?me these ^lents from descri'^tlons. ^"nfortuns tely, 

 as. previously steted, I heve found it impossible to mpke a work- 

 ?ble kev to the v;hole of the species, but I have comriled one to 

 the sToup to which G. bilobum belong, from which I think the species 

 of thrt frroup at present in cultivation x^B.zr be determined. ^^rA 

 I have sepp^sted the newly described species that belonp to tht-it 

 f-roup, end have placed them after the key at the end. Descrip- 

 tions of the older species of the pToun will be found in vol. 

 L'a:i-I_^ pp. 83 and 1S4. 



"or the cultivation of these and allied plants I am now making 

 trip], of some porous pots without a hole at the bottom, manufac- 

 tured hy lie. R. T. Die , of ^^Wlyn, i'enzance. U^der natural condi- 

 tions these plants p.et little or no rein, for long periods and it 

 is cle^r that they must obtpin the moisture they require from an- 

 other source. I think it probe ble th&t the plants a'nd the stones 

 and rocks among v/hich they grow, cool down ct night e.nd condense 

 sufficent moisture for their requirement. Byt under cultivation 

 the problem is to give them the right amount; the v/atering of them 

 is 8 r^ine art. If ke^t ary too long, the root tips die, and when 

 watered often, rot, and the plant is killed, -^nd' if too liber&ll3'- 

 wettered, especially at the wrong period, they may also rot and die. 

 'Tliese T^orous, holeless pots may therefore absorb and retc in suffi- 

 cient wFter to prevent the roots from dying completely, and st the 

 seme time a^lov; any surplus to evaporate and so prevent rot. I 

 wiT 1 rei^ort upon the result of the trial I am raa.king when I treat 

 of the general cultivation of these -t- »-+•=■. ^^t present, it may 

 suffice to say that the species 

 451 of this genus ^lovev. r-na mpke their growths of this country bet- 

 ween August and January, and from. I'''ay to near the end of July the3'- 

 po to rest. During their resting period they require very little' 

 water, but v/hen growing and. flowering they should be watered freely 

 enought to keep their roots active, otherv/ise the;'' do not flower 

 well. 



39a. — C. edvenum, N.E.Bp. CJpoi/ij'ths small (type ^) . , 2-4 

 lines thick, S-3i lines bro^'d, and l'4-2t lines thick, obconicelly 

 obovoid, slightly'- notched at the convex tori v.tiich in end view 

 is also convex or faintly ridged; orifice, -l-l line long; surface 

 smooth, glabT'ous, grey-green, suffused with purple on the sides 

 under continued sunshine, and on other either marked with a line of 

 connected dots over the top transverse to the orifice and numerous 

 other separate scattered tots, or ohly with irregularly sattered 

 dots of d?rk green or purplish -brown, and the orifice outlined with 

 similar brovm, and the confluent dots, ^''lov/ers not seen. i*'^ont- rue 

 Division; locality not stated, '^-itchell I received this r^roall 

 sT^ecies from Trofessor H. Compton in 1919, but it has not jret pro- 

 duced ^"lowers with me. 



15c. — C!. Anp-elicae, l^. 2. ^r. — Grov/ths smell, 3-4 lines hig>, 

 li'-Ss lines bro^d, obconic, m.ore or less circular or ver:/ broadly 

 elliptic at the truncate to^^; orifice about 2/3 line long; 

 surface green, -arked v/ith some elevated branching pale gree^^' 

 lines, "^loivers unknown. - Ilesenb. -'mgelic- e. Dinter and ■ich-vvantes 

 in Seitschr., f. Sukk., vol. II,_^p. 27 (l925). Great Namaqualand; 

 "Vendor", ne'-r "fermbad, Dinter. I have not seen this species. 



