118 
Sourn Arrica.—Eastern Region: Natal; Omgati, Gerrard 1026. 
Kalahari Region: Transvaal ; hills above Barberton, 1320 m., Oct., 
ray fls. white, disk yellow, Thorneroft in Herb. Wood 5729; grassy 
mountain slopes of the Saddleback Range, Barberton, 1100-— 1480 m., 
Nov., “ heads cream colour,” Galpin 685. 
8. C. Parthenium, Pers. Synop. ii. 462 (1807). 
8 Arrica.—Without definite locality, Harvey. A common 
garden plant, introduced. 
XVII.—SEED SELECTION IN THE CULTIVATION 
OF HEVEA BRASILIENSIS. 
The following letter from Mr. F. A. Stockdale, Director of Agriculture, 
Ceylon, has been received by the Director with a note on seed selection 
of Hevea in Ceylon, which has been drawn up by Mr. T. Petcu, Botanist 
and Mycologist to the Department of Agriculture. 
Department of Agriculture, 
Peradeniya, Ceylon, 
26th May, 1917. 
Sir, 
1. With reference to the article on Seed Selection in the Cultivation 
of Hevea brasiliensis by Messrs. Clayton Beadle and Henry P. Stevens, 
I have the honour to forward for publication the enclosed brief note 
which has been prepared, at my request, by Mr. T. Petch, Botanist 
“ Mycologist of this Department. 
is gives a brief account of the attempts made by this Meee 
ms in Ceylon in regard to seed selection of Hevea. The wh 
research has only been limited by the want of men and money a 
will, I hope, after the war, be extended—possibly with the help of the 
Rubber Growers’ Association. 
3. This account refutes statements by Messrs. Clayton Beadle and 
Henry P. Stevens and by rsden as to inaction in the matter 
of seed selection—statements which would not have been made had 
they been in touch with the work being carried out by this Depart- 
ment in Ceylon. 
Iam, Si, 
Your obedient Servant, 
The Director, F. A. SrocKDALE, 
Royal Botanic Gardens, Director of Agriculture. 
Kew. 
Seep SELECTION IN HEVEA. 
The question of seed selection in Hevea was a subject of discussion 
at the Ceylon Rubber Exhibition in September, 1906, and one of the 
deciding factors in the appointment of the late Dr. R. H. Lock as Assist- 
ant Director of the Royal Botanic Gardens, Ceylon, a year later, 
was his recognised standing as an authority on plant breeding. 
