NOTES 
NOTE ON THE OCCURRENCE OP SEQUOIA IN THE HEADON BEDS 
OF HORD WELL, HANTS. — While looking for seeds in the Leaf Bed of the 
Lower Headon series, Hordle (Hordwell), Hants, good specimens of Athrotaxis 
Couttsiae, so called by Starkie Gardner, have become available for study. 
The material, which was in an uncrushed condition, yielded twigs and leaves, 
cones and cone-scales, and abundant seeds, and the discovery of one cone which still 
contained many seeds, and of another which was still attached to its twig, furnished 
indisputable evidence that the different organs found really belonged to one and the 
same species. 
As the result of careful microscopic examination of leaves and stomata, of seeds, 
and of cones and cone-scales, the fossil can now be referred with confidence to the 
genus Sequoia. 
Great interest was aroused by Starkie Gardner’s reference of this Hordle fossil 
to the endemic Tasmanian genus Athrotaxis , for he stated that it was the same species 
as Sequoia Couttsiae , Heer, from the Hempstead Beds ; at the same time he threw 
doubt upon other records of Sequoia from Eocene and Oligocene horizons. 
Until 1910 no attempt was made to clear up the uncertainty thus occasioned, 
but in that year Mr. and Mrs. Clement Reid, after thorough investigation, confirmed 
Heer’s determination of the Bovey Tracy species as Sequoia. 
Now that, material from Starkie Gardner’s original locality for Athrotaxis has 
also proved to be Sequoia , it seems desirable to state the fact, pending a full account 
of the whole work for which there is not at present space. 
M. E. J. CHANDLER, 
Late Harkness Scholar , 
Nnvnham College , Cambridge. 
PHLOEM NECROSIS (BROWN BAST DISEASE) IN HEVEA BRA- 
SILIENSIS . 1 — The disease known as brown bast is prevalent in all tropical 
countries where Hevea hrasiliensis is grown on a large scale for commercial purposes, 
especially in plantations where tapping is in progress, and it is regarded at the present 
time as the most serious malady to which the Para rubber tree is liable. 
The external symptoms of brown bast are manifest in the form of longitudinal 
irregular cracks in the bark and nodular swellings (burrs), which are usually confined 
to the basal portions of the trunk and the larger lateral roots. The presence of 
1 Farmer, J. B., and Horne, A. S. : On Brown Bast and its Immediate Cause. The India-rubber 
Journal, vol. lxi, No. 25, June 18, 1921, p. 25. 
[Annals of Botany, Vol. XXXV. No. CXXXIX. July, 1921.] 
