348 
in this connection it appears very significant that the leaves of 
Pavetia indica are used in this way by natives in India (see von 
Faber, loc. cit., vol. 51, p. 336), and that leaves of the same 
species and of Chomelia asiatica “ are in high esteem as green-leaf 
manures among the Tamil cultivators of Ceylon (northern dis- 
tricts) ’ according to Rao (loc. cit., p. 142). The leaves are 
gathered from wild plants in the jungle. 
Foliar nodules containing Bacteria but differing in several 
respects from the nodules of the Rubiaceae occur in Ardisia crispa 
A. DC. (Myrsinaceae) and have been investigated by Miehe (Abh. 
Sachs. Ges. Wiss., vol. 32, p. 399; Jahrb. f. wiss. Bot., vol. 53, 
p. 1, and vol. 58, p. 29). 
XXXV.—NOTES ON HELIOCARPUS. 
T. A. SPRAGUE. 
The publication of a revision of the genus Heliocarpus (Tili- 
aceae) by Mr. E. E. Watson* suggests the following remarks which 
are based on a study of the material i in the Kew Herbarium. 
H. glanduliferus Robins. in Contrib. U.S. Nat. Herb. v. 127 
(1897). mee americanus Hemsl. Biol. Centr.-Amer., Bot. i. 139, 
partim 
Ganeenibli Dep. Santa Rosa; Chupadero, 1500 m. Heyde 
et Lux in Donn. Smith 3956. Volcan de Fuego; ridge above 
Calderas, 2490 m., Salvin. 
Mr. Watson takes a comprehensive view of H. glanduliferus, 
and cites H. glabrescens Hochr.asasynonym. The latter differs 
at first sight from type glanduliferus in the practically glabrous 
eaves with a very narrow basal sinus and a more strongly areolate 
lower surface. Mr. Watson describes the ee of the 
lower surface of the leaf of H. glanduliferus as “‘ varying from 
essentially glabrous to densely and softly stellate,” ee Salvin’s 
specimen of H. glanduliferus from the Volcan de Fuego is 
admittedly somewhat intermediate as regards the indumentum. 
‘Some of the most important specific characters in Heliocarpus, 
however, are afforded by the mature fruit, which does not appear 
be known in the case of H. glabrescens, and in the present 
state of our knowledge it seems premature to unite the two 
species. 
Mr. Watson has overlooked my identification of H. glabrescens 
with Adenodiscus mexicanus Turez.—not unnaturally, since it 
was published in the introduction to a Revision of the genus 
* Bull. Torr. Bot. Cl. 1923, pp. 109-128. 
