Abs 
144 CRYPTOGAMIA ANTARCTICA. | Fuegia, the 
Has. Falkland Islands; on dead stems of Rostkovia grandiflora. 
Puncta irregularia suborbicularia picea nitida in culmos exsiccatos efformans.  Perithecia valde depressa, 
demum basi squame instar dehiscentia. Spore irregulares, fusiformes, quandoque curvate, tenerrime, albee, 
pellucida ; endochromium varie partitum, non autem septatum. 
A species which, examined superficially, may be passed over as Leptostroma junceum, differing merely in its more 
shining perithecium. The spores are, however, of a very different form, and many times larger. In that species, 
as published in “British Fungi” (No. 197), and by Madame Libert (No. 260), they are extremely minute and 
obtuse at either extremity; the perithecium also is more closely cellular. In the specimens published by Klotzsch 
and Fries (in my copy at least), there is no fructification. It resembles also, externally, Leptostroma vulgare, but 
there is as decided a difference as in the former case between the spores. 
Pranz CLXIII. Fig. 111.—Leptothyrium decipiens, Berk., of the natural size; 2, portion of stem of ۸ 
grandiflora, with base of peridium adhering to it :—magnified ; 3, spores :— highly magnified. 
10. SPHARONEMA, Fries. 
l. SPHARONEMA sticticum, Berk.; minutissimum, punctiforme, innatum, atrum, nitidum, demum 
collapsum, sporis minutissimis ellipticis. (Tas. CLXIII. Fig. I.) 
Has. Hermite Island, Cape Horn; on dead leaves of the Deciduous Beech (Fagus Antarctica.) 
Minutissimum, punctiforme, atrum, nitidum, demum collapsum, preecipue venis foliorum innatum, unde disposi- 
tionem reticulatam exhibit. Spore minutissimee, sporophoris brevibus filiformibus affixee. 
Not to be confounded with Spheria punctiformis, Pers., (Fr. Se. Suec. No. 56), which has true asci, assuming 
the production published by Fries, which exactly accords with specimens gathered in Northamptonshire, to be 
the type of the species. Both Desmaziére’s (No. 984), and Mougeot's, and Nestler's (No. 662) plants appear to . 
me quite different. Unfortunately in neither have 1 been able to detect fructification. In Mougeot’s plant the 
perithecia are strongly collapsed, which is by no means the case with that of Fries; and that of Desmaziöre 
approaches Sp. maculeformis. 
The genus Spheronema is here considered as comprising such species of the genus Spheria as have simple 
spores, never included in asci, such as Sp. acuta, &e. 
Pate CLXIIT. Fig. 1.— 1, Spheronema sticticum, Berk., upon leaves of Fagus, of the natural size; 
2, portion of leaf and fungus; 3, spores on their sporophores; 4, spores :—all highly magnified. 
11, SPORIDESMIUM, ZA. ` 
1. SporIDEsMIUM adscendens, Berk., in Ann. Nat. Hist. vol. iv. p. 292. t. 8. f. 1. 1840. 
Has. Falkland Islands; on the underside of Polyporus versicolor, C. Darwin, Esq. 
The species is nearly allied to Sp. vagum, Nees, from which it differs merely in having constantly a single 
globose nucleus in each articulation, presuming that Corda's figure, published in the same year with that in the 
Annals of Natural History, is the plant of Nees. 
19. JZECIDIUM, Gmel. 
1, Acwium Magellanicum, Berk.; hypophyllum, totam faciem inferiorem occupans inque petiolos 
sparsum, rarissime epiphyllum, maculis rubellis, peridiis urceolatis elongatis, sporis pallidis irregulariter 
orbieularibus. (Tas. 0121111, Fig. IT.) 
Has. Strait of Magalhaens; Port Famine; on Berberis ilicifolia, Capt. King. 
C01 
