382 THE AMERICAN MIDLAND NATURALIST 
Peckia Clinton not Peckia Vell., (1825). 
Macilvainea Sarraceniae (Peck and Clint.). 
Peckia Sarraceniae Peck & Clinton. 
PILOCARPUM 
Pilocarpus Vahl! renders Pilocarpon Wainio, called by some 
Pilocarpum Clements,? a synonym. Changing the gender of an 
existing name ending does not constitute a new name. Wasnioa 
may be applied in honor of the author of the fungus genus used 
as a homonym. 
Wainioa Nov. Nom.: 
Pilocarpon Wainio, not Pilocarpus Vahl. (1796). 
Wainioa leucoblephara (Wainio). 
Pilocarpon leucoblepharum (Wainio). 
PIPTOSTOMA AND PIPTOSTOMUM. 
When we consider how readily and easily and without attempts 
at explanation even mycologists change the endings of words 
e. g., from on to um etc., and that too without consciously seeming 
to consider that they have made any essential variation in a name, 
we wonder that the converse of this is lost sight of. Pzlocarpum 
Clements is the same as Pilocarpon Wainio, and no objection is 
made, and they are at Jiberty considered interchangeable. On the 
other hand there is a Piptostoma Besk. and Br. and a Piptostomum 
Lev. and no one secms to object that they are the same word. 
If interchangeable in one case they are identica!. No two distinct 
plants ought to have the same name. If besides we find such two 
in the same work and both recognized, we have a right to feel 
surprised at the slipshod methods of mycological nomenclature, 
as much as at the logic or Jack of it that permits a thing in one case 
and forbids it in another. . 
PIPTOCEPHALIS 
Piptocephalum Sch.4 and Piptocephalis are homonyms in spite 
of different endings. Mucoricola may be used for the fungus. 
~ Vahl Beologi 1.) 29,910, (17.96). 
2 Clements, F. K., Genera of Fungi, 76 (1909). 
3 Should there be a Wainioa already we may use as alternate the 
name Limbalba. 
4 Bonplandia VIII, 369 (1860). 
