DESCRIPTION OF PLATES.
P l a t e V I I I , Pig. 1. Portion of an axis of Ipomcea rubro-caniUa, Hook, eovarod with
conidiiforous filaments of Ohoanephora Simsoni and with a portion
of a, leaf wLioh served as the aouroe of infeatioa adiierenfc to it . Nat. size.
" '» i> 2. Conidiiforous filaments of Choanephora Si'nsoni emerging from the
surface of an axis of Ipomm rubro-ccB<uUa '25
" » 3. Sporangial fruotification of Choanephora. Simnoni from a culture in
infusion of petals of HibUcns rosa-sinensis 79
„ 4. Zygospores of Choamphora Sinmni at an early $tage of development x 400
" >' Zygospore of Choa,ntphora Simsoni with two twisted processes arising
at the site of origin of the sporogeuio ones 400
» Zygospore of Clwanephora Simsoni at an early stage of development,
showing the very unequal maguifcude of the sporogouic processes
which have not yet conjugated ^QQ
" » >i Zygospore of Choanephora Simsaiii, sUowiog one of the conjugating
processes already completely emptied whilst the other is still
crowded with ochreoua contents ^QQ
» " >' 8. Zygospore of Choancphom Simsoni, showing numerous harreu processes
associated with the sporogenio ones x 400
„ 9. Zygospore of Choanephora Si-nsoni, containing a large globule of oil
and showing the striate character of the epispore x -iOO
.. .1 10. Zygospore of Choanephora Simsoni, showing maximal difTerencs in
sizos of the c o n j u g a t i n g elements ^ ^QQ
„ „ „ 11. Azygospore of Choanephora Sintsoni ^QQ
.. 12. Mycelium of Choanephora Sinnoni in the hypodertnal lissuo of au
a s í s of Tpomma rubro-cmruiea, and the lower portion of a conidiferous
filament emergent tlirongh » stomatio orifice i.-,o
" .. " 13- Portion of myceHum and base of a conidiilerous filament of Choanephora
Simsoni gg^j
" " " li- Portion of a mycehul filament in the hypodermal tissue of an axis
of Ipomcea rubro-cmrul-.'a ^ ggQ
» Ditto ditto ditto ditto X 8-30
,> 16. Ditto ditto ditro . d i t to 830
>. Ditto ditto ditto ditto X Í530
18. Portion of a myceUal filament from a culture of Choanephora Simsoni
i n infusion of the petals of Hibisem rosa-sinensia jd 400
I'J- Ruptured sporangium of Choan,^hora Simsoni, showing characters of
sporaugic membrane, columella and 400
II 1) .5 20. Sporangia of Choaifphura Simsoni ^ 79
„ 21. Chlamydospores developed in a very dilute infusion of the petals of '
SiUaciis rosa-sinemis x 400
" " " Summit of a conidiiferous filament wita conidia still a d h e r e n t . . . x 150
,1 23. Summit of a conidiiforous filament, showing form of Ihe capitella . x 150
P l u t o IX, Pig. 1, Conidia of Choanephora Simsoni x 830
" " Sporangial spores of Choanephora Simson 53,5
" »' 3. Germinating conidia, showing ruptured epispore 830
" " Germinating sporangial spores, showing ruptured epispore . . . . x $30
¿KN. Roy. Boi'. GAHD. CALC. YOL. YI.