S25 si^.es o-^ the bpse of the fl over-stalk inside the growth, as repre- 

 sented et D v'hich subsequently develons into c nevr srov/th. 



T,-' Tp Y^ 



iv . Ji . jjrown 

 (To be continued.) 



^-esenbrvanthenuri ^nd^sgne nev; i^enere sererated from it. 

 Oerd. ChroA. 111. 70: 250. 1921.' 

 (Continued from ppg-e 223. ) 



250 The smpll ^rou^ o^ which -•-. ^esliei (^if^. 110 ) end I^. gseudo- 

 trunc^tellum (why do the 'Sermp.ns devise such horrible ngmes*) 

 are t3'"i^ical representctives contains some of the^most remarkable 

 o:^ 8 IT flov^erins" rlpnts, for they pre not onlA'' "j-^imicry-plants, " 

 but elso belon/r to the very small crour^ knovm as "Vv'indowed-plants, " 

 which pre ell exclusively South African. In the seedling stcge 

 the:/ pre externally indistins-uishable from the ^phaeroids, compere 

 for example in Fig. 84 on p. 207 the seedling stage of ^. Lesliei 

 rer^resented by Q,, R, with the adult Sphaeroid represented by I-i-O; 

 both have a central orifice; but at a later stage that orifice in 

 • '. L°sliei chf'nges into a transverse fissure across the flattened 

 or convex to^ of the ^lant, dividing it into two short contiguous 

 or s] ifrhtly gating "'obes. The mode of growth is just the seme, as 

 that described for the Sphaeroides, but the flov/ers differ by 

 hpTT'in^ no tube. 



As mimicry rlants, few cpn be^t them, for in colour they are 

 bro'-m, :^i.ist-coloure(? , grey, bu"'"f, reddish or whitish, vdth or with- 

 out mottling on the top, so as to closely resemble the soil, stones 

 and riebbles among v,ihich they crow, buried in the ground with their 

 toTis nearly or ouite level with the surface of the soil. The first 

 discovery of one o^ these curious rlants v-as m^.de by 3urchell, who, 

 'when trevell5nfr in South Africa, at a place called -^and Viei, far in 

 the interior, on September 14, 1811, stooped to rick up what he 

 thoup-ht was a rebble, but when he got jt in his hand he found, to 

 his pstonishjnent , that he had T>icked ur> a living plant that very 

 closely ■resembled the stones it was grovring among Burchell made a 

 drawing o-" the r.lant, and from that drawing Hgy/orth described the 

 riant as M. turbiniforme, in 1821. Nothing more then this descrip- 

 tion WPS kno"m of the riinnt for over 100 jetrs after its discovery, 

 as the drpv;ing arrears to have been lost or destroyed end I had 

 tried in vain to get the plant refound, but the spot was too out 

 o-^ the vrav to be got at epsily. Having askad Dr. I. ^. I'ole-Svens 

 to look out for it if he had the oppo-^tunity, he being in the 

 region in 1918, was fortune, te enough to fine* that after searching 

 a whole week for it — a few specimens of the rlrnt at or near the 

 place where Burchell discovered it. ?ig. Ill is p view^of the 

 T^lant as he found it ^c-rov/inp-, taken on the snot by ^r . ?ole-Svans, 

 who has kindly p-jven me permission to ma^ke use o"*^ it, but reserving 

 to himself the cop3''rip'ht . This vievr shOT's the pl^nt growing among 

 the stones nepr the centre of the picture and demonstrates hov-r 

 easily a rerson might walk over the ground Y/here these plants grow 

 without detecting their presence v;hen out of flower. Indeed, 

 Dr. '■'iirloth and I-r. Burtt Davy have both told me that they have 

 "'alked for a lonf time over ground where I^. Lesliei was knov/n to 

 frrow without finding it, so closely does it resemble the rust- 

 coloured soil and stones where it grows, as may be perceived from 

 ^ip'. 110, coried from a '^hotof^ra'-h of ^•-. Lesliei kindly sent to 

 me bv !'r, Leslie (its discoverer), which shores two grov'ths that 



