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Falklands, ete. | CRYPTOGAMIA ANTARCTICA. 141 
LIV. FUNGI, Z. 
(By the Rev. M. J. BERKELEY.) 
1. AGARICUS, Z. 
1. Acaricus Zonginguus, Berk.; pileo obliquo suborbiculari albo demum pallide fusco glabro nitente, 
strato superiore gelatinoso, stipite curto quandoque brevissimo pallide flavo-fusco basi albo-floccoso, lamellis 
albis subfurcatis, interstitiis levibus. (Tas. CLXIII. Fig. V.) 
Has. Hermite Island, Cape Horn; on dead wood near the sea. 
Pileus 3 unc. et ultra latus, tenuis, oblique ovatus vel semiorbicularis, primum subtiliter pruinosus, mox autem 
glaberrimus, nitens; margine striato; stratum epidermale gelatinosum. Stipes vix lineam exsuperans quandoque 
obsoletus, equalis, primum centralis, deinde excentricus aut omnino lateralis, subtiliter pruinosus, demum glaber, 
pallide flavo-fuscus, ad matricem basi tomentosa affixus. Lamelle albe, distantiuscule, subfurcatee, prope marginem 
presertim subventricoss, decurrentes, interstitiis leevibus, non reticulatis. 
The nearest ally of this species is perhaps 4g. mitis, Pers., but the stem is not dilated upwards and the pileus is 
seldom perfectly lateral. Its colour, too, is different, and it has not the same opake appearance when dry. The 
upper stratum is gelatinous, though the pileus is dry externally ; a character common to several closely allied species. 
It resembles also some smaller forms of 4g. algidus, Fr., but that is at first resupinate, whereas in the present species 
the stem is normal, though, as in most of the smaller excentric Agarics, occasionally obsolete. I do not know any 
other species with which it is necessary to compare it. 
Prate CLXIII. Fig. V.—1, Agaricus longinquus, Berk., of the natural size, from rather young specimens ; 
2, another :—magnified. 
2. AGARICUS exquisitus, Berk.; minimus, tenerrimus, pileo ferrugineo subtiliter pulverulento, stipite 
brevi filiformi sursum incrassato pulverulento pileo concolori, basi dilatata irregulariter floccoso-membranacea, 
lamellis paucissimis ventricosis subliberis albo-marginatis interstitiisque levibus ferrugineis. 
Has. Port Louis, Falkland Islands ; on stems of Chiliotrichum amelloides. 
Pileus membranaceus, 1 lin. latus, orbicularis, subtiliter pulverulentus, ferrugineus. Stipes 2 lin. altus, 
filiformis, sursum incrassatus, flexuosus, pulverulentus, pileo concolor, basi disco irregulari flexuoso-membranaceo 
affixus. Lamelle pauce (6), subliberee, ferrugineo-fuscze, interstitiis latis levibus. 
This elegant little Agaric differs from 4g. horizontalis, Bull., an imperfectly known species, which I have received 
from Dr. Léveillé and have myself gathered on the trunks of trees in the park at Burleigh, near Stamford, in being 
altogether more delicate, in the membranaceous pileus, and especially in the absence of smaller gills between the 
larger. The pileus of 4y. horizontalis also is much darker when dry. 
9. Acaricus Glebarum, Berk.; pileo carnoso late umbonato glabro pallide fusco, stipite brevi glabro 
sursum subincrassato solido, basi mycelio floccoso affixa, lamellis latiusculis adnatis horizontalibus fulvis. 
(Taz. CLXII. Fig. TIT.) 
Has. Berkeley Sound, Falkland Islands; growing out of tufts of Bolas on the hills, where it endures a 
great degree of wet and cold. 
Pileus 3 unc. latus, glaberrimus, subhemisphericus, umbonatus, pro ratione valde carnosus, senectute rugosus ; 
nequaquam viscidus. Stipes $ unc. altus, 14 lin. crassus, solidus, subtiliter fibrillosus, sursum incrassatus, basi ad 
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