HORTICULTURAL JOURNAL. 171 



Trusting implicitly to your disposition to aid in promoting this laudable 

 object, by procuring, if practicable, the desired specimens from M. Fabre, 

 I am, very respectfully, your most obedient, 



W. D. 



West Chester, Pa., July 17, 1854. 



BOTANICAL GLOSSARY. 



TERMS APPLIED TO THE ELEMENTARY PARTS AND ORGANS OF PLANTS. 



AculeL Prickles, as the spines of Cacti. 



Air cell. A sort of cavity, or opening, existing in the interior of plants, 

 among the tissues of which they are composed ; they communicate with the 

 stomates, or breathing pores of plants. 



Arborescent. Having a tendency to become a tree. 



Arbuscula. Intermediate in size between a shrub and a tree. 



Arbustum. Having perennial branches, but without any supporting 

 trunk. 



Barbs. Forked hairs occurring on some plants. 



Bract. A small leaf situated on the peduncle, from the axil of which 

 proceeds a flower ; or those leaves situated betwen the true leaves and calyx. 

 In some plants they are colored, and showy as the Poinsettia. 



Cambium. Elaborated sap ; a layer of mucous viscid matter between the 

 bark and the wood, which is converted into woody fibre for the further 

 development of the plant. 



Caudex. The trunk of a tree — divided into the caudex ascendens 

 answering to the stem, and caudex descendens answering to the root. 



Caulescent. Acquiring a stem. 



Cellular tissue. Soft, pulpy mass composing the succulent parts of 

 plants, made up of cells or cavities. 



Cilice. A fringe of hairs. 



Cryjytogamous. A term applied to plants that have stamens and pistils 

 concealed, as mosses, ferns, &c. 



Epidermis. Cuticle or outer skin. 



Epiphytes. Plant3 that grow upon other plants, without drawing any 

 nutriment from them. 



Frutesctnt. Of a shrub-like nature or habit. 



