388 FUNGUS-FLOEA. 



Stachylidium extorre. Sacc. 



Effused, fusco-cinereous, velvety; hyphae erect, cylindri- 

 cal, slightly thickened at the base, gradually attenuated up- 

 wards, 50-200 x 4-5 /*, septate, opaque, dark brown, verti- 

 cillately branched towards the apex ; branchlets apical or 

 nearly so, paler, almost hyaline, 3-6 together, attenuated 

 above, bulbous below, simple or rarely again branched; 

 conidia forming spherical translucent globules 6-10 p. dia- 

 meter on the apex of the branches, at first involved in 

 mucus, then diffluent, oblong, 3-4 x 1 * 5 /JL, hyaline. 



Stachylidium extorre, Sacc., Mich., i. p. 84 ; Sacc., Syll., iv. 

 n. 1603. 



On dead wood. 



No brown creeping threads at the base ; but many of the 

 stems were beaten down by the weather, and the apex curl- 

 ing upwards looked like a very short stem. Occasionally the 

 stem seemed almost non-existent, and the crown of glistening 

 ramuli was seated directly on the wood. (Grove.) 



Tribe 12. Chalareae. Sacc. 

 CHALAEA. Corda. (fig. 35, p. 358.) 



Sterile hyphae absent or obsolete; fertile ones simple, 

 short, straight, brown, sometimes flask-shaped ; conidia hya- 

 line, cylindrical, truncate at both ends, in chains. 



Chalara, Corda, Icon. Fung., ii. p. 9: Sacc., Syll., iv. 

 p. 333. 



Chalara longissima. Grove. 



Fertile hyphae densely gregarious, erect, rigid, straight, 

 septate, equal, 150-170 x 4-5 p, fuscous below, paler and 

 often somewhat inflated upwards, gradually passing into a 

 very long, white, flexuous chain of conidia more than twice 

 the length of the stem ; conidia fusoid, irregular, somewhat 

 acute at both ends, almost hyaline, continuous, 1-4-guttulate, 

 10-15 X 3-4 p.. 



Chalara longissima, Grove, Journ. Bot, 1885, p. 12, t. 257 ; 

 f. 8; Sacc., Syll., iv. n. 1615. 



On rotten wood. 



