EXPLANATION OF FIGURES IN PLATES 1 AND II. 
PrGea IT. 
Nun W 
COs 
12. 
15. 
Diagram of a young Sporogonium of Fossombronia longiseta collected 
November 1, 1906, near close of the dry season. Found in a locality of 
constant moisture. 
. Mature plant of Fossombronta longiseta. Wad grown allsummer. Co)- 
lected January 6, drawn January 7. 
. Living rhizoid of F. longiseta perforated by hyphe. >< 560. 
. Hyphe passing from cells of thallus into rhizoid. > 560. 
. Abnormal rhizoid of /. longiseta containing hyphe. >< 560. 
. Thin-walled vesicle of the fungus associated with /. longiseta, within 
stem tissue of the host. > 560. 
. Hypha complex within cells of the host, #. longiseta. > 560. 
. Vesicle and hyphe apparently communicating with the exterior. 
560. 
. (a) and (6). Formation of conidia by abstriction of hvpha of the fun- 
gus infecting F. longiseta. >< 560. 
. Development of sclerotia in cells of a leaf of F. longrseta. > 560. 
. Perithecia-like structures developing from hyphe on the surface of 
Aneura multifida major. 
Uninfected cells of Aneura multifida major showing oil-bodies, o. b., and 
chromatophores. XX 335. 
. Infected cells of Aneura multifida major. Note the absence of oil-bodies 
and small number of chromatophores. > 335. 
. Three cells of Aneura multifida major showing knots of hyphe. Chlo- 
rophyll and other cell contents wanting; celis, dead. >< 335. 
Infection of a young plant of Aveura multifida major that has developed 
from agemma. 560. 
16a. Branching rhizoids of Aneura multifida major. X 80. 
166. Branching rhizoids of Lepidozza attenuata. < So. 
17. 
18. 
23 
Longitudinal section of young sporogonium of Porella bolander? near 
close of the dry-season. > about 50. 
Portion of an infected leaf of Porella bolanderi showing chlamydospore 
(c). X 560. 
. Developing sclerotia within leaf cells of Porella. > 560. 
. Infection of tissue of Antheceros pearsoni, showing sclerotium. 560. 
- Portion of plant of VFegatella contca showing receptacle. Collected 
December 28, 1906; drawn January 2, 1907. Ad. nat. 
Apical end of a young Fimbriarza plant. > 560. 
Young plant of Fossombronia longiseta.  X 560. 
All drawings except Fig. 1, 16 and 23 were made with the aid of an Abbé 
camera lucida. 
(50) 
