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The Canadian Field-Naturalist 



[Vol. XXXVI 



in the annotated list which follows hereafter. In 

 addition to these forty-seven species and varieties, 

 there are several interesting hybrids of the Thely- 

 pteris (Dryopterig) family, which, thanks to the 

 help of Dr. Philip Dowell (who has made a special 

 study of them), I am able to include here, viz: 

 T. Clintcniiana x Goldimia, T. cristaia x Goldiana? 

 T. CUntoniana x marginalis? , T. cristata x mar- 

 ginalis?. It has been thought advisable to place 

 a note of interrogation after the last three, in 

 \new of the fact that there is still some uncertainty 

 as to whether they are Clinton crosses or crested 

 crosses. It is indeed no easy matter in some 

 cases to make absolute definite determinations 

 with regard to these hybrids, but looking to the 

 fact that cristata is far more numerous than 

 CUntoniana it is more than probable that they 

 are crosses by the first named, although I should 

 not be surprised if they all occur here. 



It will no doubt be remembered that I drew 

 attention to the fact of the scarcity in my list of 

 purely rock-lo\-ing ferns, due to the fact of the 

 rocky localities lying at some distance from Hat- 

 ley, and my inability to visit them very often. 

 In order to see approximately what rock species 

 might reasonably be expected in this district, I 

 consulted the lists of the most famous localities 

 in the state of Vermont (which adjoins our County 

 of Stanstead), such as Willoughby Lake, Dorset, 

 Manchester, and Pittsford, from which I gathered 

 that the following species had been taken in most 

 of them, and might reasonably be looked for here, 

 vix.: Pellsea atropurpurca, Cryptogramma Stelleri, 

 Aspleniv.m viride, Asplenium Trichomanes, Asple- 

 nium Ruta-muraria, Camptosorus rhizophyllus, 

 Woodsia ilvensis. and Woodsia alpina. Of these 

 eight species, I have this season (1922) found the 

 following three, viz: Cryptogramma Stelleri, 

 Asplenium Trichomanes, and Woodsia ilvensis. 

 Assuming it possible to obtain the remaining five 

 (which I am afraid is not very likely) Hatley would 

 then have a list of thirty-seven true ferns, or a 

 lead of one over Willoughby Lake which nov/heads 

 the list with thirty-six species, having only just 

 recently attained to this honour by the discovery 

 there on July 4, 1921 of Athyrium angustifolium 

 by Mr. E. J. Winslow, who speaks of this as being 

 the farthest northeast station so far known to 

 him for this species. Evidently he is unaware of 

 my having found the species here at Hatle>, but 

 only in one wood. Another station, however, 

 was discovered at Ayer's Cliff (about seven miles 

 from Hatley; by a lady during the present sum- 

 mer n922i, but only a very few plants were noted, 

 not more than four I think. With the addition of 

 Thelypteris spinulosa, (Cryptogramma Stelleri, Asp- 

 lenium Trichomanes, and Woodsia ilvensis, the 



list of true ferns found at Hatley now stands at 

 thirty-two species, or four behind that of Willough- 

 by Lake. My first real fern hunt for the season 

 of 1922 took place on June 26, when I climbed 

 Mt. Orford (2860 feet) for the third time since 

 1918. The principal object of the present ascent 

 was to determine definitely the identity of a fern 

 I had found at the summit on May 21, 1921, the 

 fronds of which were only just uncurling at that 

 date, and also to try and add some of the rock 

 species to my list. In this I was successful, as 

 Woodsia ilvensis fell to my lot, and the species at 

 the sumit was found to be Thelypteris spinulosa 

 var. americana, of which there were several large 

 beds in full fruit. On the way down I came upon 

 one plant of Braun's Holly Fern (Polystichum 

 Braunii), thus adding a second station for this 

 interesting species. As already intimated I feel 

 sure this mountain will well repay systematic 

 working. The area is a very large one, the long 

 spurs leading to the summit would alone take 

 many days to examine, and then there are numer- 

 ous other rocky points all around the base. I 

 only wish I could spend several weeks in the 

 neighborhood, as the results I have so far obtained 

 on fljang visits are sufficient to make me optimistic. 

 My next outing was on July 6th when I climbed 

 Barnston Pinnacle (2150 ft.), the results of which 

 were very disappointing. Certainly I found two 

 interesting wild flowers on the summit, one of 

 them being the Pale Corydalis (Corydalis semper- 

 virens) which was new to my list, and the other 

 the Three-toothed Cinquefoil (Potent ilia tridentata) 

 which I had previously found there in 1918, this 

 being the only station I know of for the species. 

 Concerning the ferns I can chronicle little of 

 interest, except the fact that the Common Poly- 

 pody did not belie its name. Previously I had 

 found it in very small quantities in some five or 

 six stations, but here it covered all the huge 

 granite boulders at the foot of the Pinnacle, as 

 well as being generally distributed everywhere. 

 Other" visits I hope may prove more remunerative, 

 as of course I was only able to cover a very limited 

 area in the time at my disposal. On the eleventh 

 I was unexpectedly able to pay the big gorge at 

 Coaticook a flying visit of an hour's duration 

 only, which time was spent in locating the most 

 suitable place for entering it, the river being deep 

 in places and the sides perpendicular. Incident- 

 ally I found a fine cluster of that interesting little 

 wild flower, the Harebell (Campanula rotundifolin), 

 with which I was well acquainted in England, but 

 which I had, so far, never come across in this 

 country. 



At the end of the month I paid Burrough's 

 Falls a visit and, this being a small area, I was 



