Fíate I S, ik infusion of pótala of
of a ohlamydospore
DESCRIPTIO>- OF PLATi'S,
Gorminatiou of sporangijil spores in very W'
Hibiscus rosa-siiiensia, showing formation
directly from a spore
6 Form nt ion of a olilamydospure direotly from
dium
7. Gormination of cblamydospores with direct formation of sporangiferous
filaments,
S. Small sporangium of Choawphora Simsoni containing a few spores
only
9, Germination of a ohlamydospore with direot formation of a biaporio
sporangium
10. Forms of eoiiidiiferous fructification of Ohoantphora Shmoni from
artificial cultures in infusions of petals of Sibisciis rosa-sinenm
11. Minute sporangia containiug oae or two spores only
12. Sporangium of Choancphora Oanninghamiana . . . . . . . .
13. Ditto ditio ditto
14. Myoeliura of Ckcaiuphora Cunninghamiana from an artificial culture
15. Sporangia of Ghonntphora Cunrtinghamima
16. Germination of sporangial spores of Ohoancphora Ganninghamiana .
1". Conidia of Choanephora Cunninghaininna from a culture in infusio
of the petals of Eilhcus rosa-sinensu . •
IS. Conidia of Ghoancphora Cunninghamiana iroia
Hibiscus flowers
19. Sporangial spores of Clioanephora Gmminiihamianc
20. Germinatiug conidia of Choamphora Camingkanii,
21. Zygospore of Choanephora Cmninghamiana . .
22. Ditto diiio ditio . .
23. Ditto ditto ditto, showing one conjugatinj
element entirely empty whilst the other is stQl full . . , .
24. Conidia of Choanephora Caj>ninghamiana from an artificial culture
25. Conidiiferous fructification of Choanephora Cunninghamiana iü
natural growth on a flower of Hibiscu»
400
400
. natural growth on
ISO
400
400
830
400
400
400
400
25
I ^ S r i D E X .
Artificial onltivatione, absonco of conidial fruotittcaiioc
ot Ckoanephera Simsoni in—
Asoomycetss, reiation of Choanephora Simsoni to— .
Atmosplieric conditions in relation to tlio progress of
tlio Wiglit of Ipomoea rubro-asrulea
Basidiomycetes, relation of Choanephora Canninghamiana
to—
C.
Capitolla, oliaraofirs ot, in Choanephora Simsoni
ChiBtocladium, parasitism of—
Cliaractera of Ihe capitella of Choanephora Simsoni .
of tiio spores ditio ditto
of the zygospores ditto ditto
, generalised, of tlio genus Clioanepliora .
Cblamydospores, eonditions determining tlie formation
of—
- arising directly from spores i
Choanephora, differences between conidial fructifie
ations of the two species of— . . . .
generalised typo of the genus
C. Simsoni, a facultativo saprophyte
Colour of conidia in Choanephora Simmni
of spores and sporangia ditto ditto
' zygospores ditto ditto .
Conidia, deciduous character of, ia Choanephora
Simsoni
, measurements of—
not the parallels of unisporic sporangia
Conidial fructification the normal one in Choanephora
Simsoni
of, with e;
, production of, in Choaneptiors,
an index to the presence of maximal nutritional
activity i
— • , occasional appearaoco of,
in artificial cultivations of Choanephora Simioni
on concentrated media
Criterion, Do Bary's, of facultative parasitism and
CuhiTstions, artificial, forms of fructification c
ring in—
Diffusion, method of, in the blight on Tpomoea rubro-
Epispore, striation of, in' the conidia, 166, spores,
167, and zygospores of Choanephora Simsoni . 159
, rupture o£. ou germination of spores and
conidia of Choanephora Simsoni . . . .168
F.
Facultative parasiiism, Do Bary's criterion of— . ]G0
Plesion, terminal, of stems of sporangia in Choanc
phora Simsoni
Forms of fructification characteristic of Tarious
conditions of nutrition
Fructification, sexual, formation of, frequently
associated with decreased activity of nutrition and
Tcgctative growth icq
Function, mycelial, of the processes of the spores of
Choanephora Simsoni igg
Funnels, absence of. in the capitella ot Choanephora
Simsoni 156
Germination of spores and conidia
Eibiscus rosa-sinonsis, flowers of, as a basis for
cultivations
Host-plants of Choanephora Simo^ii.
Xpomcea ruhro-carulea, blight of— .
Measurements of conidia of Choana^hora Simsoni .
of spores ditto ditto
of zygospores ditto ditto
Membrane, sporangial, usually tuberculate .
Mycelium, characters of the, in Choanephora Simsoni
as a parasite on Ipomtsa rubro-carulea ,
Number of capitclla in conidiiferous fructification
of Choanephora Simsoni
Nutrition, rarintions in conditions of, aa determin.
ants of the production of ferious forms of frucli