ASPERGILLUS. 



[ 68 ] 



ASPEROCOCCUS. 



BiBL. Desmarest, Consid. General, s. I. 

 Crustaces ; Treviranus, Vermischte Schrif- 

 ten, i. ; M. -Edwards, Crustaces, iii. {Suites 

 a Buffon). 



ASPERGILLUS, Micheli.— A genus of 

 Mucedines (Hyphomycetous Fungi) forming 

 common moulds, such as the bhie mould of 

 cheese, A. glaucus. The chains of spores 

 arise from a more or less globular head at 

 the apex of the fertile fila- 

 ments(fig.43). It is gene- l^ig-4J. 



rally stated that the heads 

 of spores are originally en- 

 closed in a peridium ; ^.^^ 

 according to our observa- '^ "' 

 tions this is not the case ; 

 the spores bud out from 

 the capitular cell, which 

 enlarges very much during 

 the formation of the head 

 of spores, and when these 

 have been detached, the 

 head is left bare, but 

 covered with short spiny 

 processes (the points of 

 attachment of the chains Aspergillus glaums. 



of S])Ores), and then looks A fertile filament 

 i ,, . ^' ,., with chains of spores 



SOmethmg like a young on a globular head, 

 peridium of Mucor. Brit. Magnified so diame- 

 ters. 



species : 



* Fertile filaments simple. 



1. A. glaucus, Link. Sporidia globose, 

 variable, white to glaucous, close {A. can- 

 didus, Link) or lax. Heads about 1-100" 

 in diameter when mature. On cheese, lard, 

 bread, &c., very common. It has been found 

 also in the lungs and air cavities of birds 

 (fig. 43). Mucor glaucus, L. 



2. A. roseus, Lk. Sporidia globose, very 

 small, rose-red ; fertile filaments not septate. 

 On damp paper, lint, carpet, &c. 



3. A. aureus. Berk. Sporidia large, ellip- 

 tical, thinly scattered, golden-yellow ; fertile 

 filaments without septa. On bark. 



4. A. aurantiacus, Berk. Sporidia oval, 

 the lowest of the chain much larger, myce- 

 lium rusty-orange, the heads often prolife- 

 rous, so as to produce a complicated mass. 

 On bark. Ann. Nat. Hist. vi. p. 436. pi. xiii. 

 22. Nematogonium aurantiacum, Desmaz. 

 Ann. des Sc. Nat. 2 ser. ii. p. 69. pi. 2. fig. 1. 



** Fertile filaments branched. 



5. A. maximus, Lk. Sporidia very large, 

 at length yellow brown, mycelium a fleecy 

 mass of the same colour; fertile filaments 

 dichotomous, clavate above. On decaying 

 Fungi. 



6. A. mollis. Berk. Sporidia large, sub- 

 globose, white, mycelium white ; fertile fila- 

 ments dichotomous, standing in minute, 

 scattered white bundles. 



7. A. virens, Lk. Sporidia, like the fila- 

 ments, greenish ; tufts of fertile filaments 

 rather dense, entangled, suberect. On de- 

 caying fungi and other bodies. 



8. A. alternatus. Berk. Sporidia grey- 

 black, subtruncate; fertile plants branched 

 alternately hi a zigzag manner, erect or 

 decumbent, forming extremely minute orbi- 

 cular patches on damp paper. Ann. Nat. 

 Hi5^. i. p. 262. ph 8. f. 11. 



9. A. dubius, Corda, would appear to 

 differ generically from the above. Mr. Ber- 

 keley states that its capitular cells bear 

 linear processes, each surmounted by four 

 sterigmata, on which are attached the chains 

 of spores. On dung. Corda, Icones, ii. 



t. 11. fig. 77. 



BiBL. Berkeley, in Hooker's Br. Flora, 

 vol. ii. part 2. p. 339; Ann. Nat. Hist. i. 

 262. vi. 436. 2nd ser. vii. 100 ; Fries, -Sy- 

 stema Mycologicum, iii. 383 ; Corda, Icones 

 Fungorum ; Robin, Veg. Parasites, p. 515. 



ASPEROCOCCUS, Lamour.— A genus 



Fig. 44. 



Fig. 45. 



Fig. 46. 



Asperococcus Turneri, Dillw. 



Fig. 44. Fronds reduced to l-3rd. 

 Fig. 45. Fragment of ditto, magnified 50 diameters. 

 Fig. 46. A section at right angles to fig. 45, showing the 

 sporanges and paraphyses, magnified 50 diameters. 



of Dictyotaceae (Fucoid Algae), of which 

 three species are found on the British coast. 

 The fructification consists of groups of spo- 

 ranges (commonly called spores), intermixed 

 with paraphyses, scattered over the whole 

 surface of the frond. When mature these 

 sporanges discharge zoospores. 



BiBL. Harvey, Br. Marine Algce, 2nd ed. 

 p. 42. pi. 8 C. ; Phyc. Brit. t. xi., Ixxii. and 

 cxciv. ; Thuret, Ann. des Sc. Nat. 3 ser. 



