ADDENDA. 



Having three pages to fill out in this Letter, we print some matter that has 

 been standing in type, some of it, for several years. Some of the items are 

 a little out of date. All of it has been left over from various Letters and 

 Mycological notes. 



ADVERTISEMENTS. 



(Crowded out of Letter No. 48.) 



adustus, Willd. ; affine, Leveille ; affinis, Nees ; anebus, Berk. ; antilopus, 

 Kalchbrenner ; applanatus, Persoon ; aratoides, Patouillard ; arcularius, Batsch ; 

 australe, Bathie; australis, Fries; bicolor, Junghuhn; Blanchetianus, Montagne ; 

 candidus, Spegazzini ; caperatus. Berkeley ; carneo-mgra. Cooke ; cinnamomeo- 

 squamulosus, Hennings; coliformis, Dickson; concentrica, Bolton; conicus, 

 Bathie ; dendroidea, Berkeley ; dichrous, Fries ; dictyopus, Montague ; durus, 

 Junghuhn ; elegans, Junghuhn ; fasciatus Leveille ; favoloides, Hennings ; flabel- 

 liformis, Klotzsch; flavus, Junghuhn; gallo-pavonis, Berkeley; gibbosa, Persoon; 

 gilvus, Schweinitz ; hispidus, Bulliard ; hornodermus, Montagne ; hystrix, Cooke ; 

 immaculatus, Berkeley ; leoninus, Klotzsch ; lignosus, Klotzsch ; lobatum, Swartz ; 

 lucidus, Leys ; luteo-olivaceus, Berkeley; luteus, Nees; Madagascarensis, Bathie; 

 mangiferae, Leveille; mastopodus, Leveille; megaloporus, Montagne; melano- 

 porus, Montagne; Mellisii, Berkeley; minuto-fruticum, Bathie; multiformis, 

 Montagne ; occidentalis, Klotzsch ; pachyphloeus, Patouillard ; pectinatus, 

 Klotzsch; perlevis, Bathie; Persoonii, Montagne; petaloides, Bathie; pruinatus, 

 Klotzsch; pseudosenex, Murrill; pulcherrimum, Berkeley; pullus, Montagne; 

 quercina, Linnaeus; radicans, Berkeley; rawakense, Persoon; repanda, Persoon; 

 rigida, Berkeley; roseola, Patouillard; rugosissimus, Bathie; rugosus, Xees ; 

 Sajor Caju, Fries; scylpturatus, Bathie; senex, Montagne; stuppeus, Klotzsch; 

 substigius, Berkeley; subtornatus, Murrill; sulphureus, Fries; surinamense, 

 Leveille; tabacinus, Montagne; tenuis, Hooker; umbrinella, Fries; unguliformis, 

 Bathie; velutinosus, Bathie; velutinus, Fries; versatilis, Berkeley; vinosus, 

 Berkeley; xanthopus, Fries. 



MINNESOTA MUSHROOMS. 



"Minnesota Mushrooms" is the title of a publication (Part 4) of Minnesota 

 Plant Studies. Although the work was issued in 1910, it has just come to our 

 notice. We were in Europe when the work appeared. The author is F. E. 

 Clements, State Botanist of Minnesota. 



While, of course, the work is not exhaustive, we think it will prove one 

 of the 'most useful publications on American mycology, particularly to those 

 who are not familiar with the common species. It is well illustrated with 

 photographic cuts that are characteristic "enough, so that the common fungi of 

 the woods can mostly be easily identified. The author should be strongly com- 

 mended for two things : 



First, he used binomials as the names for the plants, and made no reference 

 to the biographical citations to those who are alleged to have named them. 

 The general adoption of this plan would cause very rapid advancement in 

 mycology, for the mycological worker would then be more interested in finding- 

 out the truth than he would be in proposing as a new species everything he can 

 not identify for the purpose of adding his name. We are glad to note that 

 several recent writers, such as Romell, Massee, Swanton, and now Mr. Clements, 

 have adopted this plan. It will lead to a very superior line of work in the 

 future. 



Second, Mr. Clements has used the established names in mvcolosrv. and 



