Hymenomycetaa, ThelephoraceiB, AleurodiscUs. 525 



llexiiosis 80*6-7, qiiandoque clavatis, 45*12-16; basidiis clavatis 

 40 * 12, sterigmatibus 4 divergentibus, 15 m- long. 3-4 |j. basi crassis 

 praeditis ; sporis byalinis aequalibus, 13-15*9-11; parapliysibus 

 snrsum racemosis et ramulis lateralibus apice minute globosis ; 

 liarte racemosa 10-15 * 3-4,5. 



Hah. in caulibus eniortuis R u b i et V i t i s , Massaclvusetts, 

 Maryland et Mexico, America bor. (A. P. D. Piguet, (1 L. Shear, 

 Murrill). 



Aieurodiscus cremeus Pat., Bnll. Soc. Mycol. XXXI 1915, p. 73. — 1945 

 Sparsus v. contluens, orbicularis, 2-5 mm. diam. ubique cremeus, 

 resupinatus, leviter adnatus, sessilis, cupuliformis, margine obtuso, 

 viiloso ; liyraenio levi, concavo, dein plano, habitu farinoso; trama 

 tenui, alba, sicca, molli, ex byphis hyalinis, laxiusculis 2 |j, cr. for- 

 mata; basidiis clavatis, apice rotundatis, guttulis maiusculis farctis, 

 45 * 12-15, sterigmatibus 4 subulatis ; sporis ellipsoideis, achrois, 

 12-15 * 9-11 ; paraphysibus gracilibus, spiraliter v. tortuoso flexis, 

 subraraosis; i^ilis marginalibus, hyalinis, mollibus, helicoideis, 2 |jl cr. 

 Hah. in corticibus, Oho Ganh, Tonkin (Duport). — Gyphellae 

 quoque subaffinis. 



Aleurodiscus atlanticus Maire, Bull. Soc. de TAfr. du Xord, 1917, 1946 

 p. 157. — Crustaceus, adhaerens, subcarnosus, margine abrupto, 

 oxalato calcico farctus, 0,5-1 cm. diam. ambitu subcirculari v. ir- 

 regulari; hymenio inaequali sub lente pruinoso, salmoneo, margine 

 conformi ; hyphis tenui-tunicatis, fibuligeris ; 2-3 [Ji diam.; basidiis 

 clavatis, 50-70 * 12-15, roseo-farctis, 4-sporis ; sterigmatibus cylin- 

 draceis, crassis, elongatis, 10 * 2; sporis breviter ellipsoideis, intus 

 roseolis e granuloso 1-2-gnttiUatis, episporio tenui, 0,5 [x cr., e levi 

 dense verrucoso, 14-19 * 11-14; pseudophysibus filiformibus et den- 

 drophysibus ramosis praesentibus. 



Hab. in cortice Cedri atlanticae, M. Atlantis, Maureta- 

 niae, Afr. bor. 



Aleurodiscus Burti Trott. nom. u. Aleurodiscns cremeus E. A. Burt., 1947 

 Ann. Miss. Bot. Gard. 5., 1918, p. 199, fig. 11, nec Patouill. 1915.— 

 Fructificationes resuj)inatae, effusae, adnatae, primum convexae 

 2-5 mm. long. 1-2,5 mm. latae dein confluentes planae, et usque 

 5 cm. long. 1-1,5 mm. latae, arescendo laceratae et cremeo-coriariae, 

 margine crasso intacto; contextu 000-800 [x cr., stratos subcrystal- 

 ligeros hyphis suberectis constitutos praedito; hymenio ex basidiis 

 clavatis, paraphysibus albis papillatis 6-7 [x diam., aliis aequaliter 

 tunicatis ]x diam. apice plus minus moniliformi rotundato-cou- 



