This, like other genera of sporiferous Sphoe mposccl of more or less doubtful speci 8 they
may be spermatiferous fonns of higher genera. Till more however is known on the subject, it is needful to retain
them in their appointed place ; aud even after due eliminations have heen made, it is very possible that there may
still be really autonomous productions amongst them. (Name from cr^atpa, a globe, and vaipa, gelatine.)
1. Sphæronæma rufam (Fr. Syst. Myc. ii. p. 536).
I I a b . Ou exposed wood. Archer.
The specimens on analysis exhibit the structure of a Sclerotium, as in fact do many true Spliariacea in a young
state. It is ciuious that this is the only production of the group which has been collected in Tasmania. It is
scarcely however credible that such productions as Phoma, Leptostronta, etc., should be entiiely wanting.
Gen. LY. ÆCIDIUM, Gmel.
Spores coucatenatæ, in soros congestæ, peridio membranaceo demum lacerato-aperto cinctæ.
Tbe delicate peridium aud tbe bright spores which it encloses make these little parasites extremely pretty objects.
The species are however comparatively rare in the southern hemisphere. Two of the three Tasmanian species
appear to be perfectly distinct from those of Em'ope. (Name from aiKiov, a wheal, and «cSoj, to resemble.)
1. Æ c id iun i soleaiæforme (Berk.) ; maculis orbicularibus fuscis, peridiis cylindricis elongatis
candidis apiee laciniato-radiatis, sporis subangularibus aurantiacis.
H a b . On pods of Goodia latifolia, Archer.
Forming round brown spots. Peridia ci'owded, central, white, nearly a line long, irregularly divided above.
Spores mostly angular, often 5-6-angled, about incb across ; border of ceüs of tbe peridium striate.—Resembling
Æcidium Berberidis.
2. Æ cid ium cy sto se iro id e s (Berk.) ; pustulatum, folia deformans, peridio immerso, sporis aurantiacis
subangulatis.
H a b . On Opercularia varia, J. D. II., Gunn.
Forming little pustules on the upper side of the leaves, which it swells out so as to look like the fruit of a
Cystoseira. Peridia immersed within the pustules, bursting at the apex. Spores rather angular, orange, veiy minutely
echinulate, at first foimíng necklaces.
3. Æ cid ium ranunculacearum (DC. Fl. Fr. vi. p. 97).
H a b . On a small species of Ranunculus : St. Patrick’s River, Nov. 1844, Gunn.
Gen. LYI. USTILAGO, Lk.
Recepjtaculum eilusura, e cellulis minimis irregularibus compositum. Spora minores simplices, pulve-
raceæ.
Most of the species have loose soot-Uke spores, but in a few they are closely compacted. (Name from ustus,
burnt.)
1. U stila g o so lid a (Berk.) ; compacta, globosa, atra, sporis subglobosis lævibus. (Tab. CLXXXIII.
Kg. 11.)
H a b . On Chatophora imherbis: Penquite, Dec. 1845, Gnnn.
Foi-ming little, globose, pill-shaped, compact bodies, scarcely a line across, jet-black. Spores aggregate, sub-
globose, ggVg inch in diameter, mostly smooth, but rarely exliibiting two or three flat vesicular prominences, mixed
with shreds of tissue and threads.—This species connects Ustilago and Sporisporium.—P la t e CLXXXIII. Fig. 11,
plant, nat. size ; a, group of spores, magnified ; b, separate spores, highly magnijied.
■ Gen. LVII. PILACRE, Fr.
t capitatum, supra membranaceum, tenerrimum, fatiscens. Spora subglobosæ, in strato supero
peripherico coacervatæ.
Small Fungi, with the habit of Onygena, but allied to the Moulds. (Name from wAo?, a hat, and axpov, the
top of anything.)
1. Pila cre d ivisa (Berk, in Fl. N. Zeal. p. 197).
H a b . On dead wood. Archer.
The specimens e
New Zealand.
3 imperfect and undivided, but they appear to belong to the same species with those from
Gen. LV III. ISARIA, Bill.
Receptaculum. elongatum, floecosum, floccis sporiferis rectis tectum. Spora nudæ.
Isaria are essentially compound Sporolricha, and, like them, are for the most part mere conditions of higher
Fungi. Some however are autoaomous. (Name from wov, equal; from the equal height of the individual plants
of the original species.)
1. Isaria radians (Berk.) ; cervino-grisea, orbicularis, ramosa, undique floccis verticillatis vel sub-
dicliotomis vestita, sporis ellipticis minimis.
H a b . On bark, Archer.
Forming patches l - l inch bread. Receptacle branched, radiating, composed of threads, the free portions of
which are verticillate or subdichotomous, each branchlet beiug terminated by an elhptic spore inch long.__
This species resembles Isaria umbrina, Pers., but the decidedly branched receptacle and radiating patches easily'dis-
tinguish it. It is not accompanied by any Spharia, but whether autonomous or not I am uuable to say.
Gen. L IX . TRICHODERMA, Pers.
Peridium indeterminatum, e floccis ramosis septatis contextum, demum in medio evanescens. Spora
minutæ, siccæ, iu disco conglobatæ.
The species are probably not autonomous, and resemble collapsed patches of Mould. (Name from Bpit a hair,
and Seppa, a skin.) '
1. Trichoderma viride (Pers. Syn. p. 230).
H a b . On dead bark. Archer.
Gen. LX. VERTICILLIUM, Nees.
Flocci ramosi, rarais verticillatis apice monospermis. Spora simplices.
Little Moulds, known by their distinctly whoried branches. Of exotic species very little is known. (Name
from veriicillus, a whorl.)
1. V e r tic illium niveum (Berk.); candidum, ramosum, ramulis basi incrassatis breviusculis, sporis
oblongis.
I I a b . On dead Agarics, Archer.
Snow-white, delicate, branched. Whorls consisting of about three branchlets, which are acute above aud
thickened below. Spores oblong, inch long.—Differs from V. agaricinum in its shorter branches, more delicate
habit, aud far smaller spores.