Table Of ContentThis thesis, having been approved by the
special Faculty Committee, is accepted by
the Graduate School of the
University of Wyoming,
in partial fulfillment of the requirements
for the degree of __Saienc e_
—
Dean of the Graduate School.
August 15. 1950
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Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
THE KYPHOKYCETOU5 GENERA OF A. P. MORGAN
by
Kenneth Sheridan Wilson
LIBRARY
□ F THE
UNIVERSITY DF WYOMING
LARAMIE
A Thesis
Submitted to the Department
of Botany and the Graduate School
of the University of Wyoming in Partial
Fulfillment of Requirements for the Degree of
Master of Science
University of Wyoming
Laramie, 7/yoming
August, 1950
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UMI Number: EP20010
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HEBARD i-.uO-l
ACKNOWLEDGMENT
The writer wishes to express his deep gratitude to Dr. W. G.
Solheim for his suggestions and direction of this study and to Dr.
H. T. Northen who aided with the photography. The writer wishes
further to acknowledge his indebtedness to Dr. D. P. Rogers ef the
New York Botanical Garden and to Dr. G. W. Hart in of the University
ef Iowa whose generosity in the lending of the type specineas from
their herbaria made this study possible.
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TABLE OF CONTENTS
Charter Page
I. INTRODUCTION ............................................................................................................ 1
II. MATERIALS AND METHGDS..................................................................................... 5
Preparation of s lid e s ............................... 5
Double coverslip mounts. . ....................................... . . . . . 5
Microtome s lid e s .................................................................................... 5
Photomicrography....................................................... 6
III. CYLINDROCLADIUM MORGAN..................................................................................... 7
Description of the genus .................. . . . . . . . . . . . . 7
Description of the t 3rpe species C. scoperium ......................... 7
Discussion ........................................................................................................... 6
Flutes end figures ...................................................................... 13
IV. HSLICOON MORGAN................................................................................... 17
Description of the genus . . . . . . . . . . . . . . . . . 18
Description of the type species H. s e s s ile ............................ 19
Discussion. ........................... 20
FI-tes and fig u re s........................................................................................ 22
V. SYI.TH-D1CSFCR1 MORGAN . . . . . . . . . . . . . . . . . . . . 26
Description of the genus ..................................................... . . . . . 27
Description of the type species S. elects. ........................ 27
Discussion. ....................................................... 28
Plates and figures. . .......................................................... . . . . . . 32
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iv
VI. SPORCCYSHS MORGAN ................................................................................................. 38
Description of the genus . . . . . . . . . . . . . . . . . . 39
Description of the type species S. condita . . . . ... 39
D iscussion...................... 40
Fletes end fig u res..................................................................................................45
VII. ACOUTIUM MORGAN...............................................................................................................55
Description of the genus............................. 55
Description of the type species A. album . . . . . . . . . . 55
D iscussion.....................................................................................................................55
VIII. SUMMARY....................................................................................................................... 57
IX. BIBLIOGRAPHY....................................................................................................................58
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LIST OF PLATES
Plate
Cvlindrocladium scooarium Morg.
I Camera lucida drawing . . . . . . . . . . . . . . . . . . . . . 6a
II Conidia and conidiophores ................... . . . . . . . . . . . . . . 1 3
III Aggregation of conidia................................................................................................14
IV Conidia and conidiophores......................................................................................15
V Hypha, conidia. and conidiophores............................................................ . 1 6
Helicoon sessile Morg*
VI Camera lucida drawing .............................................................................17
VTI Conidia.............................................................................................................................2 2
VIII Conidium. . . . . . . ................................. . . . . . . . . 23
IX Conidium................................................................................................................................24
X Hypha with sessile or absentc onidiophore andc onidium. . . . . 25
Svnthetospora electa Morg.
XI Camera lucida drawing .........................................................................2 6
XII Early and late stage conidia.................................................. . . . . . . 3 0
XIII Habit picture..............................................................................................................32
XIV Cross section of hymenium showing host-paresite relationship . 33
XV Conidia and conidiophores. . . . . . . . . . . 34
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vi
XVI C onidia........................................................................... ......................................... 35
XVII C onidia....................................................................................... . . . . 36
XVIII High cower view of conidium . . . . . ................................................... 37
Scorocvstis condita Morg.
XIX Camera lucida drawing .......................................................... .......................... 38
XX Habit picture of sporangiocarp...................................................................... 45
XXI Longitudinal section of sporangiocarp . . . . . . . . . . . . 46
XXII Longitudinal section of sporangiocarp ..................... .......................... 47
XXIII Longitudinal section of sporangiocarp showing embedded
sporangium ........................ . . . . . . . . . . . . . . . . . . 48
XXIV Sporangia .................................................................................................................... 49
XXV Sporangia............................................................................................... 50
XXVI Sporangia and spores. . . . . ................................... . . . . . . . 51
XXVII Sporangium and escaping mass of spores. . . . . . . . . . . . 52
XXVIII Sporangium and escaping mass of sp o res........................................ 53
XXIX Embedded sporanium in sporangiocarp. . . . . ................................. 54
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INTRODUCTION
The Fungi Imperfecti consists of a large number of fungi in which
the only stage known in their life cycles is the asexual, or conidial
or "imperfect" phase of reproduction. 1'hile most of the species prob
ably belong in the Ascomycetes, it is impossible to classify them with
these ’without having the escigerous stage. Consequently a separate
system must be maintained for the identification of these fungi.
Eased on the type of fructification produced, the Fungi Imperfecti
have been grouped under three orders; the Sphaeropsidales, llelanconiales
and Monilieles. The Sphaeropsidales are characterized by having the
conidia produced in pycnidia, the lielanconiales produce the conidia in
acervuli, and the Noniliales have the conidia borne on external hyphae
or conidiophores which in general ere rather loosely grouped or diffused
as opposed to the compact grouping of the conidiophores in an acervulus.
It appears probable that this distinction for the latter two orders is
not fundamental and that they should be united as a class of the Fungi
Imperfecti.
The Roniliales ore more commonly referred to as the Hyphcmycetes
due to the characteristic hyphae on which the conidia are developed.
Included in the group are many species which are extremely important
as parasites. Some are parasitic on plants, others on animals. In
addition many are saprophytes causing decay, food spoilage, deterioration
of fabrics and the like. Some, as various species of Penicillium. are
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