CHROMOGENIC FUNGI WHICH DISCOLOR woop. 81 
Boulanger * has proven by the use of careful cultural 
methods that Sporotrichum chlorinum Link var. grisea 
Boul. is astage of Graphium eumorphum Sacc. This dis- 
covery is now verified by the present investigation, and 
Sporotrichum-like stages of other species of Graphium are 
now published for the first time. Boulanger also discov- 
ered a Sporotrichum stage of Chaetomium cuniculorum, 
and obtained fruits of the latter fungus in connection with 
Graphium, indicating that Chaetomium cuniculorum is 
the perfect stage of the other two fungi. We have not 
been able to verify the latter relationship. 
Graphium giganteum (Pk.) Sace. is given by Durand t 
as a conidial stage of Holwaya gigantea (Pk.) Durand. 
Zopf t observed a moniliform conidial stage of Chae- 
tomium which failed to germinate. He makes no mention 
of finding any related forms of Sporotrichum. 
Some of the species we have studied contain both Sporo- 
trichum forms and moniliform fruits, the latter resembling 
very much the branching clusters of the conidial stage of 
Ceratostomella. 
From the study of several species of Graphium the fol- 
lowing cultural characters are found to be common :— 
MYCELIUM. 
The mycelium in a culture from either of the two spore- 
forms found in the species studied is from the first hyaline 
and septate. On rich vegetable-decoction agar, like that 
made from green pine sapwood, bean pods, potato, etc., a 
fluffy white mycelium is usually produced, varying in 
density with the medium and the species. The first form 
of conidia is borne on erect hyphae, which may be either 
simple or branched. These hyphae or conidiophores 
* Boulanger. Rev. Gén. de Bot. 1895 97-102. 
+ Durand, E J. Bull. Torr. Bot. Club, 28% 351. (1901). 
t Zopf, W. Ueber Pilzfarbstoffe. III. Bot. Zeit. 47; 86-89. (1889). 
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