PLATE 22 
Helminthosporium halodes 
A.—Portion of Distichlis spicata showing discolored areas on blades and sheaths 
of leaves, due to attack by H. halodes. X K. 
Ba-f.—Conidia produced on leaf of Distichlis spicata in natural environment. X 500, 
Ca-i,—Conidia of H. halodes germinating in water. Ca-h, conidia produced on host 
in natural environment; Ci, conidium produced on portion of diseased leaf after 
incubation in damp chamber. Germination typical in Ca, e, h, i by production of 
two polar germ tubes; atypical in Cb, c, d, f, g by production of lateral germ tubes 
alone or in addition to polar germ tubes. X500. 
Da-f.—Conidia produced on diseased part of leaf of Distichlis spicata incubated 
in damp chamber. X500. 
Ea-g.—Conidiophores of H. halodes; Ea-e produced on host tissue incubated in 
damp chamber; Ef-g produced on host in natural environment. X500. 
