Falklands, etc.] FLORA ANTARCTICA. 447 



LIV. FUNGI, L. 



(By the Rev. M. J. Berkeley.) 

 1. AGAEICUS, L. 



1. Agaricus longinquus, Berk.; pileo obliquo suborbiculari albo demum pallide fusco glabra nitente, 

 strato superiore gelatinoso, stipite curto quandoque brevissimo pallide flavo-fusco basi albo-floccoso, lamellis 

 albis subfurcatis, interstitiis laevibus. (Tab. CLXIIL Fig. V.) 



Hab. Hermite Island, Cape Horn ; on dead wood near the sea. 



Pileus |- uno. et ultra latus, tenuis, oblique ovatus vel semiorbicularis, primum subtiliter pruinosus, mox autem 

 glaberrimus, nitens j inargine striato ; stratum epidermale gelatiuosum. Stipes vix lineam exsuperans quandoque 

 obsoletus, asqualis, primum centralis, deinde exeentricus aut omnino lateralis, subtiliter pruinosus, demum glaber, 

 pallide flavo-fuscus, ad matricem basi tomentosa affixus. Lamellae alba?, distantiusculas, subfurcatse, prope marginem 

 prsesertim subventricosse, decurrentes, interstitiis laevibus, non retieulatis. 



The nearest ally of this species is perhaps Ag. mitis, Pers., but the stem is not dilated upwards and the pileus is 

 seldom perfectly lateral. Its colour, too, is different, andjt 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 Ag. algidus, Fr., but that is at first resupiuate, 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. 



Plate CLXIIL Fig. V. — 1, Agaricus longinquus, Berk., of the natural size, from rather young specimens; 

 2, another : — magnified. 



2. Agaricus exguisitus, Berk.; minimus, tenermnus, pileo ferrugineo subtiliter pulverulento, stipite 

 brevi filiformi sursum incrassato pulverulento pileo concolori, basi dilatata irregulariter fioccoso-niembranacea, 

 lamellis paucissimis ventricosis subliberis albo-marginatis interstitiisque laevibus ferrugineis. 



Hab. Port Louis, Falkland Islands ; on stems of Chiliotrichim amelloides. 



Pileus membranaceus, 1 liu. latus, orbicularis, subtiliter pulverulentus, ferrugineus. Stipes 2 lin. altus, 

 filiformis, sursum incrassatus, flexuosus, pulverulentus, pileo concolor, basi disco irregulari flexuoso-membranaceo 

 affixus. Lamella paucfe (6), sublibera?, ferrugiueo-fuscse, interstitiis latis laevibus. 



This elegant little Agaric differs from Ag. horkontalis, Bull., an imperfectly known species, which I have received 

 from Dr. Leveille and have myself gathered on the trunks of trees in the park at Burleigh, near Stamford, in being 

 altogether more delicate, in tlie membranaceous pileus, and especially in the absence of smaller gills between the 

 larger. The pileus of Ag. //orizontalis also is much darker when dry. 



3. Agaricus Glebanm, Berk.; pileo carnoso late umbonato glabro pallide fusco, stipite brevi glabro 

 sursum subinerassato solido, basi mycelio floccoso affixa, lamellis latiusculis adnatis horizontalibus fulvis. 

 (Tab. CLXII. Fig. III.) 



Hab. Berkeley Sound, Falkland Islands; growing out of tufts of Bolax on the hills, where it endures a 

 great degree of wet and cold. 



Pileus ^ unc. latus, glaberrimus, subhemisphericus, umbonatus, pro ratione valde carnosus, senectute rugosns ; 

 nequaquam viseidus. Stipes f unc. altus, 1-i lin. crassuSj sobdus, subtiliter fibrillosus, sursum incrassatus, basi ad 



