18 
At.a later date Appel and Laubert succeeded in obtaining the 
fruit of Spondylocladium atrovirens, Harz, from these sclerotia, and 
consequently Phellomyces disappears as a genus. This proof has 
been verified at Kew. 
Failure has attended attempts to infect roots of carrot, parsnip, 
and turnips with Spondylocladium, and it is just possible that this 
parasite may be confined to potatoes, 
The habit of the fungus is shown in the accompanying illustra- 
tion. The conidiophores are coloured, 300-400 u high. Conidia 
30-50 x 6-9 mu. 
The following extract from a letter received from an Agricultural 
College, along with one of the diseased lots of potatoes, proves that 
the disease is not quite new to this country, and also proves that 
tubers known to be diseased are sometimes planted :— 
“They were grown on moss land . . . which had been 
uncropped for five years, and was manured with leaf mould and 
basic slag. The ‘seed’ potatoes were similarly affected.” 
Bibliography. 
Appel and Laubert ; Ber. deutsch, Bot. Ges., 23, p- 218 (1905). 
Clinton ; State Conn. Exp. Sta. Rep., 1907-08. 
Frank ; Ber. deutsch, Bot. Ges., 16, p. 280 (1898), 
Harz ; Kinige Neue Hyphomyceten, p. 129, pl. 31 (1871). 
Johnson ; Econom. Proce, Roy. Soc, Dublin, 1, p. 161 (1903). 
IV.-THE SECTION OMPHACARPUS OF GREWIA IN 
AFRICA, 
T. A. Spracun. 
The genus Omphacarpus was { 
1842 (Verh, Nat. Géech, Bot. a5 eee eae disco 
shrubs, both of them natives of Borne 
Korthals clearly recognised it 
indeed, he admitted that it mi 
genus taken in a wide sense, and 
section Microcos. His two species 
ss and O. hirsutus, distinguished 
its, 
“ p. 237) caom a third species, 0. 
Ind.. i oy - Aen years later Miquel (Fl. Ned. 
ne» part 2, p. 204) reduced Omphacarpus to ahs rane of a 
a and * 
Masters in 1868 (F 
African species te roe 
which he suppos 
. Afr,, i, p. 243) added two new 
ac. and described a third, G. coriacea, 
exinvoluerate, and therefore excluded from 
