107 



observation of the ivregulaiities in plants is not only interesting in itself, but has also 

 proved useful in establishing the laws which regulate their growth, I beg leave to for- 

 ward to you the accompanying sketch of some which I observed in the autumn of 

 1836, on a bed of Tropaeolum atro-sanguineum. No. 1 represents a series of the calyx 

 and spur, showing a gradual change from an almost complete absence of the spur to 

 the development of three. In another instance where the spur was absent, its place 

 was supplied by an additional sepal. In No. 2 the spur was fully developed, and 

 another spur was formed, which was inverted, and its point appeared among the sta- 

 mens : in the figure the petals are turned back to show its position. No. 3 is the ex- 

 ternal appearance of the spur, showing the place where the second spur is inverted. 

 The same irregularity I have frequently observed since that time; and in 1837 I found 

 an instance (No. 4), in which two spurs were developed and both inverted, presenting 

 the appearance in the inside of the flower represented in No. 5. On each of the points 

 I found a small drop of honey. — Anna Carpenter ; 2, Great George St., Bristol, Janu- 

 ary 18, 1842, 



131. List of Mosses ^c. collected in Wharf edale, Yorkshire. The plants mentioned 

 in the following list were collected in Wharfedale, Yorkshire, on the 18th and 20th of 

 December, 1841 ; they were all found within a space of a little more than three miles 

 along the banks of the Wharfe, extending from Bolton Abbey to Barden Tower, where 

 the mill-stone grit is the prevailing geological formation. When I state that the sea- 

 son was one of extreme severity ; that I had in most instances to clear away the rime 

 before I conld ascertain what I was collecting ; and lastly, to cut up the frozen mass- 

 es with my knife ; — I think the collection will be considered an interesting one. I 

 have to acknowledge my obligation to Dr. Taylor for clearing up my doubts with re- 

 gard to a few of the species. 



Musci. Hypnum populeura 



Gymnostomum viridissimum plumosum 



Tetraphis pellucida 

 Weissia fugax, Hedtv. 

 Grimmia rivularis, Bridel. 

 Didymodon rigidulus 



capillaceus 

 Trichostomum lanuginosum 

 Dicranum flavescens 

 Cinclidotus fontinalioides 

 Bryum gracile, Wils.* 



marginatum 

 Bartramia gracilis 

 Neckera pumila 



crispa 

 Anomodon curtipendulum 



viticulosum 



brevirostre 



Hepaticce. 

 Jungermannia asplenioi- 



des ; a variety with 



entire leaves 

 pumila 

 sphaerocarpa 

 ventricosa 

 connivens 



nemorosa, y. recuvvifo- 

 scalaris [lia 



barbata, B. minor 



Jungermannia laevigata 

 tomentella 

 serpyllifolia 

 minutissima 

 Tamarisci 

 furcata, i3. elongata 



Lichenes. 

 Boeomyces roseus 

 Endocarpon miniatum 

 Parmelia herbacea 

 Sticta pulmonaria 

 CoUema lacerum 



ceranoides, Borr. in E. 

 Bat. Supp. 

 Solorina saccata 



trichophylla 



platyphylla,2or3 vars. Sphasrophoron compressum 

 — Richard Spruce; Collegiate School, York, March 4, 1842. 



132. Note on Didymodon flexicaulis. I may add that I observed Didymodon flex- 

 icaulis, Scleich., in considerable quantity near Skipton ; it appears to be common in 



* Discovered by Mr. Wilson in 1833. 



