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The genus Cladosterigma Pat. T. Petch. 213 
Spegazzini described Microcera Clavariella in Fungi Guarani- 
tici, Pugillus I (ante 1886), as occurring on living leaves of 
Eugenia, but not causing any spot. The sporodochia were 
simple, cylindrical, minute, 250-500 high, 50-80 diameter, 
obtuse at the apex, erect, waxy, viscid, rigid, yellowish or flesh- 
coloured, glabrous, solitary or in groups up to ten, arising from 
a lenticular, parenchymatous stroma, 0-5—I mm. diameter, of 
the same colour as the sporodochia, embedded in the tissues of 
the leaf. The basidia covered the whole surface of the sporo- 
dochia, and were clavate, obtuse or acute at the apex, appearing 
covered with short longitudinal ridges, hyaline, monosporous, 
I0O-I5 x 3p. The conidia were clavate, slightly curved, 3-5 
septate, not constricted, hyaline, ends acute, 20-27 « I°5-2y. 
I have examined three gatherings of this species ex Herb. 
Spegazzini, viz. the type, No. 3483, Caaguazu, Brazil, January 
1882; No. 3787 (F. H. 164), on leaves of Eugenia, Paraguay, 
in the forests, April 1883; and No. 4057, f.g.n. 428, Guarapi, 
October 1883. The two latter differ from the type in minor 
details, due to more advanced development. 
The genus Cladosterigma was instituted by Patouillard in 
“Champignons de |’Equateur,’”’ Bull. Soc. Myc. France, 1892, 
p. 138, t. x11, fig. 3, the generic description being—Fungi biophili, 
foliicoli, gelatinosi, clavariaeformes, hymenio basidifero undique 
vestiti; basidia clavata, sterigmatica; sterigmata brevia apice 
dendroideoramosa; sporulae hyalinae, simplices. 
The type species, Cladosterigma fusisporum, had cylindrical 
caespitose clavae, simple, forked, or variously branched, white, 
gelatinous, pellucid, 0-5-1 mm. high, arising from a_ black 
sclerotium, 0-5—I mm. diameter, immersed in the leaf in a brown 
circular spot, the spots being scattered or confluent, 2-8 mm. 
broad. The basidia were claviform, attenuated below, obtusely 
rounded above, 10-13 x 6u, and the sterigmata 4-6y high, 
“denticulato-ramosa.’’ The conidia were fusiform, elongated, 
acute at either end, guttulate, 16-20 x 5-6. Some of Patouil- 
lard’s figures were reproduced in Engler-Prantl’s Pflanzen- 
familien. 
Both species occur on living leaves of Myrtaceae, and the 
synnemata or clavae arise from a compact stroma within the 
tissue of the leaf, breaking through the epidermis in clusters. 
The description of Microcera Clavariella states that there is no 
spot on the leaf, while Patouillard described and figured a 
circular brown spot overlying and surrounding each stroma. 
This difference appears to be due merely to the age of the 
fungus. In the type specimen of Microcera Clavariella the spots 
are not evident on one side of the leaf, and minute and pale- 
brown on the other, but other specimens in Herb. Spegazzini 
