344 FUNGUS-FLORA. 



DACTYL ARIA. Sacc. (fig. 24, p. 274.) 



Saprophytic. Sterile hyphae present or almost obsolete ; 

 fertile erect, simple ; conidia fusoid or more or less clavate, 

 clustered in an irregular manner at the apex of the ste:ii, 

 2- many-septate, hyaline or brightly coloured. 



Dactylaria, Sacc., Mich., ii. p. 20 ; Sacc., Syll., iv. p. 194. 



Dactylium, Bonord. (in part.) 



Dactylella differs in having only a single conidiurn at the 

 apex of the fertile hyphae. 



Dactylaria orchidis. Cke. & Mass. (fig. 24, p. 274.) 

 Scattered or solitary ; fertile hyphae erect, simple, 

 springing from a delicate, branched mycelium, septate, 

 250-280 x 10-12, filled with orange colouring-matter, apex 

 2-3-times dichotomous, branchlets short, almost erect ; 

 conidia fusoid, 4-guttulate, then 3-septjite, hyaline, 40-50 X 

 7-9 /A, solitary at the tips of the branchlets, and altogether 

 forming a lax head. 



Dactylaria orchidis, Cke. & Mass., Grev., xix. p. 42 ; Sacc., 

 Syll., Suppl., vol. x. n. 7248. 



On putrid leaves of Oncidium macrantJium. 



Tribe 9. Ramularieae. Sacc. 

 KAMULAEIA. Unger (emended), (figs. 27, 28, p. 274.) 



Parasitic. Hyphae simple or with short, scattered 

 branchlets, tips denticulate and bearing conidia which are 

 1- many-septate, colourless or larely brightly coloured, and 

 in some species catenulaie. 



Ramularia, Unger, Exanth., p. 169 ; Sacc., Syll., iv. p. 196. 



The parasitic habit, simple or sparingly branched hyphae 

 denticulate and bearing the septate conidia at the tips, cha- 

 racterise the genus, which differs from Ovularia only in the 

 septate conidia. 



Ramularia hellebori. Fuckel. (fig. 28, p. 274.) 

 Forming suborbicular opots on both sides of the leaves, 

 spots white with a rather broad black margin ; hyphae 



