LIST OF CANADIAN HEPATIC^E. 5 



and it was so very little that I could not well even take off a leaf for 

 the sake of the form and the texture ; but I have made careful drawings 

 and I am absolutely sure that his R. spicata is the same as R.formosa. 

 In my notes I have put down that it is not even a form but altogether 

 corresponds to the original plant of Nees, of which I enclose a specimen 

 to keep. When I wrote the article on Radulce, I was not aware that 

 Austin had published a plant, which he called R. spicata. Some years 

 later I got the book of Mr. Underwood, who gives an enumeration of 

 all the known American Hepaticsee. I at once recognized the R. spicata 

 Austin, named in this book (with Austin's description) to be Grottsche's 

 Radula Bolanderi, and so your specimens prove it to be. I have 

 described this plant on page 12 of my article on Radulce. I suppose 

 Mr. Austin has the priority, and as the name of Mitten must fall } 

 Austin's name of Radula spicata has to stand for R. Bolanderi, G-., who 

 knew it long before Austin recognized this plant, but never published 

 a description of it ; he got the plant from Mr. Bolander of San Francisco, 

 and I have got it from Gottsche and from numerous other localities of 

 Western and Southern United States." 



Description of PI. IV. Fig. 1. Plants natural size. 2-3. Portions 

 of stems with perianths, x 24. 4. Portions of stem with c? spike, x 24. 



17. Lejeunea serpyllifolia, (Dicks.) Libert. 



Hab. On moss and rocks along the Moira, Belleville, 1865. On cedar 

 trees, Ste. Anne's River, Gasped, 19th Aug., 1882. (Macoun.) Island of 

 Miquelon. (Delamare.) 



Var. Americana, Lindb. 

 Hab. On earth along the Moira Eiverat Belleville, Out. (Macoun.) 



18. Lejeunea Biddlecomiae, Aust. MSS. 

 Hab. On trees, Canada. (Macoun, Herb. Aust.') 

 Obs. I add some interesting notes by Dr. Spruce: 



" As to Lejeunea BiddlecomicK, when I first examined it, I hoped it 

 might be kept apart from L. calcarea by the much wider leaves ; but I 

 have lately gone over these plants and their exotic allies, and I find Euro- 

 pean forms of L. calcarea scarcely distinguishable from the American 

 plant. When I first noticed the styliform appendage to the leaves, I 

 took it to be a uuicrural (one-legged) stipule ; but as I could never find 

 the other leg, I afterwards held it (with Lindberg) to be a special 

 organ, and placed it in Cololejeunea. Careful study of all the Drepano- 



