Feb. 15, 1925 
Inoculation of Coniferous Stems 
329 
the line number, the host, the locality, 
and the person to whom each line 
originally belonged. 
Technical Description of Phytoph- 
thora Sp. 
A brief description is given below of 
the Phytophthora isolated from pine. 
This Phytophthora grew well on corn- 
meal agar, sterilized beans, peas, beets, 
and turnips. 
Hyphae approximately 2.5 to 6.5 m 
in diameter. Both aerial and sub- 
Table I.— Source and u 
merged, flexuose and noduled with 
characteristic swellings at end of 
branches. 
Sporangia approximately 19 to 40 m 
by 28 to 86 M* Not produced] on 
ordinary media. Only produced when 
the hyphae alone, or the hyphae plus 
the substratum are placed in running 
water and kept at temperature of 
about 12° C. Germination by a tube 
or by formation of zoospores. Resting 
spherical zoospores approximately 7 
to 9 m- 
ntity of the tested fungi a 
Source 
Name 
Line 
No. 
Host 
Locality 
Contributed by— 
Botrytis cinerea Pers. 
Botrytis spp. (small scle- 
rotial types). 
Cephalothecium roseum 
Cda. 
Corticium vagum B. and 
C. ( Rhizoctonia solani 
Kiihn) 
470 
920 
921 
924 
925 
944 
922 
923 
288 
Pseudotsuga taxifolia seed¬ 
ling. 
Ceanothus americanus .... 
Ribes rubrum .. 
Rosa sp... 
Arachis hypogaea.. - 
Hibiscus sabdariffa _ 
Arisaem atriphyllum _ 
Hydrastis canadensis...... 
Ilex nursery stock. 
Utah_ 
New York b _ 
-do- 
-do--- 
-do- 
California.-- 
New York *>_... 
-do__... 
District of Columbia 
C. Hartley. 
H. H. Whetzel. 
Do. 
Do. 
Do. 
W. T. Horne. 
H. H. Whetzel. 
Do. 
C. Hartley. 
50 
147 
183 
186 
187 
189 
205 
213 
230 
233 
240 
329 
330 
331 
332 
333 
340 
341 
343 
361 
362 
363 
365 
380 
381 
552 
Pinus banksiana seedling.. 
Picea engelmanni seedling. 
Phaseolus vulgaris... _ 
Solanum tuberosum __ 
_do.__ 
Beta vulgaris .. 
Pseudotsuga taxifolia _ 
Beta vulgaris seedling_ 
Elaeagnussp __ 
Elaeagnus sp. (duplicate 
of No. 230). 
Pinus ponderosa seedling.. 
Reisolation of No. 147 from 
Pinus ponderosa seed¬ 
ling. 
Reisolation of No. 230 from 
Pinus banksiana seed¬ 
ling. 
Reisolation of No. 213 from 
Pinus banksiana seed¬ 
ling. 
Reisolation of No. 147 from 
Pinus ponderosa. 
Reisolation of No. 147 from 
Pinus ponderosa seed¬ 
ling. 
Reisolation of No. 213 from 
Pinus banksiana seed¬ 
ling. 
Reisolation of No. 230 from 
Pinus banksiana seed¬ 
ling. 
Reisolation of No. 147 from 
Pinus banksiana seed¬ 
ling. 
Pinus resinosa seedling_ 
-do- 
-.do-- 
-.do- 
-do_ 
Pinus strobus seedling_ 
Picea engelmanni seedling. 
Nebraska.. 
Districtof Columbia 
New York_ 
Ohio... 
New York_ 
Michigan.. 
Colorado_ 
District of Columbia 
Garden City, Kans.. 
_do- 
_.do_ 
j 
j 
---i 
'j 
Cass Lake, Minn... 
— .do- 
_do.._ 
_do_ 
_do_ 
_do_ 
California_ 
i 
Do. 
Do. 
M. F. Barrus. 
Mrs. C. R. Tillotson 
Do. 
Mrs. L. J. Weld. 
Mrs. H. E. Watkins. 
H. A. Edson. 
C. Hartley. 
Do. 
T. C. Merrill. 
R. G. Pierce. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
C. Hartley. 
“ writer wishes to express her thanks to Miss Helen Johann, of the Office of Cereal Investigations, 
U. S. Department of Agriculture, for the identification of Atanasoff’s Fusarium cultures; to Dr. C. D. 
Sherbakofi, of the Tennessee Station, for the identification of several other Fusarium cultures; and to Dr. 
Carl Hartley, of the Office of Forest Pathology, U S. Department of Agriculture, for his kind assistance 
and valuable suggestions. 
b Locality not positive. 
•Identified by C. D. Sherbakofi. 
