Natural^ Historical Collections, 377 



1. C. plantagineO'Corymbosa, raised from seed of C. corymbosa { produced 



by the pollen of C. plantaginea. 

 This is an exceedingly handsome plant, with the foliage of C. plantagima, 

 and the outline of its flowers, but they are larger than these, and with fewer spots 

 externally ; the mouth is open, as in C. corymbosa, but smaller, and the dark 

 marks on the inside of the throat are round, not in streaks ; in its flowering stem 

 there is the mode of branching of C. corymbosa. Looking at it only with a flo« 

 rist's eye, it is really a splendid plant. A specimen of this hybrid having been 

 •ent by Mr. Morrison to the meeting of the Caledonian Horticultural Society on 

 3d June 1830, the Society's Silver Aledal was voted for it. 



2. C. plantaginea-arachnoidea ; raised from seed of C. arachnoidea, pro- 



duced by the pollen of C. plantaginea. 

 This is a large healthy plant, having acquired little from C. arachnoidea, except 

 « dirty brown colour in the corolla, the mode of branching in the flower-stalk, and 

 the number of its flowers. There is very little woolliness upon the plant, but 

 there is none of the polished surface of C. plantaginea, and the leaves are much 

 smaller, and very much resemble those of C. purpurea. 



3. C. arachnoidea-plantaginea ; raised from seed of C. plantaginea, produced 



by the pollen of C. arachnoidea. 

 This plant is almost identical in appearance with the last, the parents beiiig only 

 transposed. The flower is rather smaller, its colours darker, more decided, more 

 speckled, and, on the whole certainly handsomer. 



4. C. corymbosa-F other gillii ; raised from seed of C. FothergilUi, produced 



by the pollen of C. corymbosa. 

 This plant being produced by a cross between species much more dissimilar, is 

 quite unlike any of the others, has little of the famUy features of either of its pa- 

 rents, and apparently the delicate health of a badly organized mule. The leaves 

 are like those of C. FothergilUi, but they are more numerous, and extend farther, 

 upon a more robust stem. The form of the flowers considerably resembles those 

 of C. FothergilUi, but they are larger, and yellow. Its habit is such that I 

 thought it was probably a mule between C. FothergilUi and C. integri/olia, be- 

 fore I was informed by Mr. Morrison of its origin Ed. New Phil. Journ. 



July 1830. 



Division of the Organs of Motion — M. Carus, in his synoptical Tables of 

 comparative anatomy, commences with the causes aud phenomena of motion. He 

 establishes the foUowing table :— 



Attraction. Repulsion. 



(Phenomena of general motion in space.) 



Contraction. Expansion. 



(Phenomena of motion in the living individual.) 



Circular line. Straight line. 



(Expressing the relation of two points in attraction and repulsion.) 



Circular fibre. Longitudinal fibre. 



Contraction, expansion. Contraction, ejejmnsion. 



Cylinder. 



(Result of the combination of the longitudinal and the circular fibre.) 



(a. In motion.) 



Systole. Diastole. 



(6. In development.) 



Retrograde. Progressive. 



