- COPTON-LE Av BLIGHT RAS cossyersa). 
Fig. 1. ‘Diseased leaves, naturai size, (hi, C., pix.) ‘Y 
Fic. 2. Showing a tuft of dark-colored fruiting hyphe rising from the mycelium fm a 
LRiey within the leaf and issuing through the epidermis. Above are Showas a 
' long, colorless, septate spores. (E. A, S.. del.) 
PLATE Y. 
ANTHRACNOSE OF RASPBERRY (GLGZOSPORIUM VENETUM). 
Fia.1. Branch, natural size, showing appearance of disease upon the cane and jeaveds 
and its effect on the berries. The upper portion of the cane is quite 
dead, and the diseased spots extend down on the green portion, ode e 
the branch and stalk that bears the berries, and over the petiole and mid- 
P ribs of the leaf and leaflets. The berries remain unripened. owing to the ~ 
effects of the disease. (R. C., pinx.) re 
Fie. 2. Section through a diseased spot on the cane, showing destruction of the 
outer layers of tissue, and the spores (@) borne on the surface and center 
of the spot. (F. L. S., del.) : ; 
Fig. 3. Spores, showing two in process of germination. (F, L. §., del.) 
PLATE VI. 
ANTHRACNOSE OF THE BEAN (GL@OSPORIUM LINDEMUTHIANUM),. 
Fie.1. Diseased pods, natural size. (R. C., pinx.) 
Fig. 2. Section through a diseased pod. The section is taken between two bance ceonshs 
consequently shows none in the cavity. The diseased portions (a) are | - 5 
dark colored ; b, exocarp; ¢, endocarp. (EH. A. §., del.) é ae 
Fig.3. Another section through a diseased pod, showing ‘an advanced stage of | a 
the disease and 4 diseased bean (0) inside the pod : : a, diseased spot, one — 
entire side of the pod is diseased and shrunken; ¢, small diseased spots — 
where the fungus has not penetrated through the exocarp. (E.A.8., del.) 
Fia.4. Section through a fruiting pustule: a, ruptured epidermis ; b, mycelium; 
e, conidiophores : d, brown hyphe; e, spores. (KE. A. &., del.) . out 
Fic. 5. Spores, highly magnified, (E. A. S., del.) og. eee 
PLATE VII. . ie 
CATALPA-LEAF SPOT DISEASE, : =) 
-Fia.1. Section through leaf at the union of a diseased spot with the healthy tig 
sue: a, healthy tissue; b, diseased spot, in which the cell outlines have 
almost entirely disappeared. : tae 
Fig. 2. Tuft of Macrosporium cata:pe emerging from a stoma; a a, spore-bear- 
ing hyphe; 6 b, spores; ¢, very young spore. na ate 7: 
Fia.3. Germinating spores of Macrosporium. fies 
Fia. 4, Pyenidium, | ov fruiting body of Phyllosticta catalpe, The pyenidium is it 
partially sunken in the tissues of the diseased leaf, and the sporés are 
borne on rather long basidia which line the inside of the conceptacle. 
Fig.5. Spores, more highly magnified. : 
Fic.6. Spores, germinating after forty-two hours in water. 
Piave VIL. ae 
BLACK SPOT ON ROSE LEAVES (ACTINONEMA ROSA). “2 
\ %, 
Fig, 1. Diseased leaf, natural size. (R. C., pinx.) 
fie. 2. Enlarged portion of leaf at edge of spot, showing the apparently superficial ie 
mycelium and two fruiting pustules. (R. C., pins. ) 
Fia.3. Branching strand of superficial mycelium. (E. A. S:, del.) 
