II. — Cultivated, 
c. Useful. 
a'. Slightly affected. 
Gossypium lierbaceum et barba- 
dense (Cotton). 
Solanum tuberosum et osculen- 
tum (Potato and Egg-plant). 
Capsicum annunm (Pepper). 
Spinacia oleracea (Spinach). 
Jatropha manihot (Cassava). 
Zen, mais (Corn), 
b. Badly affected. 
The Genus Brassica (Sinapis), 
(Cabbage, Kale, etc.). 
Raphanus sativus (Radish). 
Hibiscus esculentus (Okra). 
Pisum sativum (Pea). 
Arachis hypogsea (Pea-nut). 
Dolichos catiang (Cow Pea). 
Phaseolus vulgaris (Bean). 
Phaseolus lunatus et nanus 
(Bean). 
All of the Genus Cucurbita 
(Squashes, etc.). 
All of the Genus Citrullus (Mel- 
on). 
All of the Genus Cucumis (Cu- 
cumber). 
Lycopersicum esculontum (To- 
mato). 
Beta vulgaris, varieties (Beet), 
d. Oruamental. 
a. Slightly affected. 
Hibiscus syriacus et coccinneus. 
Mesembryan themurn, various spe- 
cies (Ice-plant). 
Mikania scandens (Parlor Ivy). 
Pliarbitis purpurea et al. sp. 
(Morning Glory). 
Nolana, sp. 
Petunia, sp. (Petunia). 
Boussingaultia basselloides. 
11. — Cultivated —Continued. 
b. Badly affected. 
Koniga maritima. 
Iberis umbellatai 
Lagenaria vulgaris (Gourd). 
Begouia, sp. (Begonia). 
Dahlia variabilis. 
Helianthus annuus (Sunflower). 
Coleus, var. sp. 
Achyrantlics, var. sp. 
Amarantus var. sp. 
Shrubs and Trees. 
c. Useful. 
a. Slightly affected. 
Citrus vulgaris (Bitter sweet Or- 
ange). 
Citrus aurantium, var. sp. (Or- 
ange, Lemon, etc.). 
Vitis, var. sp. (Grape). 
Prunus myrobolanus (Plum). 
Broussonettia papyrifera (Paper 
Mulberry). 
Moms, var. sp. (Mulberry). 
Juglans cinerea ( Walnut). 
Cary a olivmformis (Pecan). 
b. Badly affected. 
Prunus domestica (Plum). 
Prunus armeniaca (Apricot). 
Prunus vulgaris (Peach). 
Prunus communis (Almond). 
Ficus carica (Fig). 
Juglans regia. (English Walnut). 
Salix, var. sp. ( Willows). 
d. Oruamental. 
Spirca sorbi folia, var. sp. (Spirea). 
Prunus nana et lanceolata (Flow- 
ering Almond). 
Bnddloia, var. sp. 
Gardenia florida (Cape Jessa- 
mine). 
This long list embraces the greater part of our most valuable food- 
plants, fruit-trees, and many of the choicest flowers, and it fully justi- 
fies the inquiry now made as to the history and means to prevent the 
spread of the disease induced by the Anguillula. 
I think it useless to endeavor to account for the apparent vagaries of 
the Anguillula, as, for instance, to ascertain why the roots of the Prunus 
vulgaris are so badly affected, while Prunus cerasus are unhurt; or why 
the Leguminosro are susceptible and the Umbelliferae arc not. It is 
reasonably sure that rapidly growing, soft tissued roots are better sub- 
jects for invasion, expansion, and decay than those of slow growth and 
