: 954 DB. C. SPEGAZZINI AND MR. T. ITO ON 
DESCRIPTION OF PLATE VIII. 
Fig. 1. Portion dorsal surface of carapace of Clemmys caspica, bearing numerous 
patches of alga (a, a). 
Fig. 2. Section of tortoise-shell and alga in a direction perpendicular to animal’s 
back; showing mode of penetration of alga (a) into carapace. 
Fig. 3. Section of tortoise-shell and alga in direction parallel to animal’s back ; 
showing at a,b, c sections through wedges penetrating the tortoise-shell. 
Fig. 4. Sections grown in water for some few days ; showing at a and b the 
lowermost cells growing into filaments. 
Fuxar JAPONICI NONNULLI: new Species of Japanese Fungi 
found parasitic on the Leayes of Polygonum multiflorum, 
Than}, and Lycium chinensf, Mill. By Dr. CHARLES SPE- 
‚F.L.S. 
[Read 16th June, 1887.] 
GAZZINI and ToKUVTARo I 
SoME years ago my attention was directed to the observation 
of the structure and life-history of some minute fungi which 
are found parasitic on the leaves of Polygonum multiflorum, 
Thunb., and Lyciwm chinense, Mill., growing abundantly not far 
from my residence in Tokio. The principal fungus infesting the 
former plant is Puccinia polygonorum, Schlechtd., which, accord- 
ing to Frank*, is already known to attack many species of Poly- 
gonum, such as P. Convoleulus, dumetorum, lapathifolium, and am- 
phibium var. terrestre. Careful examination has, however, shown 
methat more than two species of fungi are parasitic on the leaves 
of P. multiflorum, Thunb., and that some of the fungi under 
my observation were as yet undescribed. Consequently I placed 
some of my specimens at the disposal of my valued correspondent, 
Prof. C. Spegazzini, an excellent observer of microscopic fungi, 
of the Colegia Provincia dela Plata, in the Argentine Republic, 
South America, for their systematic determination, which how- 
ever was delayed, as the specimens arrived during his absence on à 
journey of scientific exploration among the wild Indian tribes of 
Patagonia. His letter, sent to me since his return to La Plata, 
contained interesting information of what he has made out from 
the dried specimens ; from which it appears that of the three kinds 
* Frank, ‘ Krankheiten der Pflanzen,’ 1880, p. 464. 
