460 PETCH : 



roots and stems of Thea. on surface roots of Ficus cl^istica, 

 on stems of Castilloa elastica, Albizzia moluccana, Erythrina 

 lithosperma, and Carica papaya. Brick records it on decaying 

 fruits of Latania borbonica from Venezuela. V. K. Charles 

 found what is probably the same species on fruits of Mangijera 

 indica from Florida, and on fruits and stems of cacao from 

 Brazil and San Domingo. Appel and Laubert recorded it on 

 Cacao and Carica papaya from Samoa, Howard on cacao and 

 sugar cane in the West Indies, Griffon and Maublanc on 

 cacao from the Congo and Albizzia moluccana from Mada- 

 gascar, Butler on sugar cane in India, while Hennings, 

 PriUieux and Delacroix, Patouillard, and van Hall and Drost 

 liave found it on cacao in the Cameroons, Central America, 

 and Surinam. It will be noted that these records are dia- 

 metrically opposed to the belief which has apparently been 

 held by describers of fungi, viz., that Diplodias on different 

 host plants must be different species. 



Griffon and Maublanc suggest that Lasiodiplodia tubericola 

 Ell. & Ev., the original species of Lasiodiplodia, may be 

 identical with Botryodiplodia theobromce Pat. ; its spores are 

 given as 18-22 X 11-14 \)., i.e., about one-third shorter than 

 those of the latter species. Lasiodiplodia Thomasiana Sacc, 

 with spores 28-30 X 11-12 jx and paraphyses 80-90 jj, long, on 

 leaves of Heptapleurum Barter i from S. Thome (13), would 

 appear to be Botryodiplodia theobromce. There does not seem 

 much room for doubt that Diplodia Wurthii is Botryodiplodia 

 theobromce, and in all probabihty the same is true of D. 

 mangiferce Koorders and D. cinchonce Koorders. The de- 

 scriptions of these last three species do not reveal any striking 

 points of difference, and it would seem, that their author had 

 been influenced chiefly by the fact that they grew on different 

 hosts. A search through Saccardo shows that there are many 

 species, anterior to Botryodiplodia theobrom,ce, wliich should be 

 compared with it, to determine whether they are not the 

 same. For example, on Carica papaya there is Diplodia 

 papayce Thiim., wdth spores 25 x 10 \i. Again, on Gocos nuci- 

 fera we have Diplodia cococarpa Sacc, with spores 22 x 12 (^ 

 and long paraphyses . Diplodia epicocos Cooke, with spores 22 x 

 10-12 [x, Diplodia palmicola Thiim., with spores 20 X 10 [i, 



