438 



On 



legumes 



of Gleditschia Triacanthos, Aiken, South Caro- 



lina (Itavenel, nos. 250! and 2330!). 



Probably a stage of the Botryodiplodui referred to below 

 Journ. Bot. 1918, p. 294, and Kew Bull, supra, p. 188. 



See 



The other fungus, on the same sheet, shall be described as : 



II. — Haplosporella Gleditschiae, sp. nov. 



Pycnidia in greges erumpentes confluentesque digesta, quan- 

 doque longitudinaliter seriata, atrobrunnea, ca. 300 fx lata, 

 peridermio laciniato margine pallidiore cineta, oontextu crasso 

 parenchyniatico eonflata. Sporulae oblongae, utrinque rotunda- 

 tae, contiiuiae, dilute olivaceo-brunneae, plerumque 1-2-guttu- 



6-10 /x, sporophoiLS diplodioideis, oblongis, 

 erectis, fasciculatis, achrois, apice obtusis, ca. 30 x 9 u. sufful- 

 tae. (Fig. 5, c.) 



Hab. in ramulis Gleditschiae Triacanthi (Kavenel, no. 2380!) 



2347!), Aiken Carolinae 



australis. 



latae, 16-22 x 



et in ejusdem leuuininibus (Rav. no. 



Mg. 5. a, Sphaeropsis Ricim, Cooke; h, Dothiorella Gleditschiae; 



c, Haplosporella Gleditschiae. 



This cannot possibly be anything else than a young state of a 

 Botryodiplodia, before the septum is developed, being exactly in 

 the same condition as the British species which have been named 

 Haplosporella melogrammata, H. viticola, and H> caespitosa (all 

 known to be the mere states of species of Botryodiplodia) . It is 

 probably, therefore, == Botryodiplodia Gleditschiae Berl. (Sacc. 



Syll. 



X. 



294), but since no specimens of that were at hand for 



comparison, it is recorded here under an ad interim name. There 

 is every reason to believe also that the Botryodiplodia is a con- 

 gested state of Diplodia Gleditschiae, Pass. (Syll. iii. 335), with 

 I), macrostoma, Lev. (Syll. iii. 350) f. Gleditschiae as an inter- 

 mediate form. 



With regard to these names which are admittedly ad interim, 

 pending the results of cultures to be carried out by the younger 

 generation, it may be remarked that, so long as they are recog- 

 nised to be what they are, they are a help rather than a hindrance. 

 For many of these Imperfect Fungi occur so widely and so 

 persistently in the unfinished state that, if no definite reference 

 is made to that state, one who is not expert in the subject may 

 easily go astray. It seems, therefore, a mere common-sense 

 business precaution to list them under the preliminary name, 

 always of course with cross-references as in a library catalogue. 

 This does no harm except in the minds of believers in the sacro- 

 sanctity of Linnean binomials. We do not call the " fruit of an 

 oak-tree " by that name, but u an acorn. " 



