r)4S .l(ti i;.\Ai, OF rill': Diir.u; imk.n r of Ac imc ii.tfue. — ])kc'., l!)22. 



coiniectioii willi iuvesti»-atioiis into the cause o'f ]\iinip.si?kte of poats 

 and sheeu. Dr. Schouland reported on the invasion of Heliclii!ii>u in 

 (irjiuroph ulhuu, on the Anuitoki Mountains, and suppested that the 

 Botanical Survey should take steps to investig'ate means of restoring- 

 the veld to the orip'inal condition of a piass veld. 



Memoir No. 3 of Hie Botanical Survey of South Africa, entitled 

 " South African Cype7'aceae," by S. Schonland, and Memoir Xo. 4, 

 "A Guide to Botanical Survey Work," were published durinp: the 

 year. 



5. Botanical Stations. — Work at the Botanical Station, Prinshof, 

 was carried on under considerable ditHculties owinp' to the lack of 

 proper fencinp* and suitable buildin<;s. Since these were not forth- 

 cominp', owinp- to tinanciai stringencies, it was decided to discontinue 

 work at Prin.shof and for the present to carry on the ex])erinients at 

 Groenkloof and the Dry-lands Station. 



Special consideration was p'iven to experimental T)lantinp- of 

 indipenjus p-rasses, of which the Division has between seventy to 

 eip'hty species under cultivation. Kikuyu prass still p-ives the best 

 results as a pasture p'rass. It is superior to many veld p-rasses in that 

 it can stand tramplinp by stock and also rootinp- by pip\s ; this beinpf 

 due to its app'ressive rootinp- system. 



Natal p'rass (Penvisefum unisetu)ii), a native of the ])rakensberg, 

 has ])roved to ])e most frost-resistant, and commences its prowth in 

 Aup-ust, when most of the other veld p'rasses are still dormant. 

 Panicum. laevifolium (variously known as Old Lands p-rass, Pelala 

 P'rass, Roll g-rass, or Blanwzaad-g'ras) is the best of the native hay 

 grasses. 



Of the exotic grasses under observation, Napier fodder (Pvnui- 

 setiim inirpureximi) can be recommended for ensilage. It does best on 

 a warm moist soil. The frosts experienced during the winter weie 

 a severe test of the frost resistant qualities of the various grasses. The 

 exotics were less affected by cold than the indigenous grasses, and 

 PJialaris hulhosa and Rescue grass {Bromus uniobridey) were con- 

 spicuous in this respect. Same interesting' experiments were also 

 carried out with various clovers, some of which were tound to grow 

 well with Kikuyu grass. 



0. Puhlicatums. — The following is a list of the Division's recent 

 pul)1icatious : — 



