HENDERSON'S HANDBOOK OF PLANTS. 



GLA 



Glandular. Furnished with glands. 



Glandulose, Glanduliferous.Besuing glands. 



Glandidososerrate. Having serratures tip- 

 ped by glands. 



Glareose. Growing in gravelly places. 



Glaucescent. Dull green, passing into gray- 

 ish blue. 



Glaucous. Covered with a fine bloom, like 

 that of the Plum or Echeveria secunda 

 glauca. 



Glazing. The operation of glazing green- 

 houses is now well understood in the vi- 

 cinity of large cities; but in many sec- 

 tions of the country the awkward and 

 imperfect methods of twenty years ago 

 are still in use. The plan now almost 

 universally adopted is to "bed" the 

 glass in thin putty, lapping only about 

 one-sixteenth part of an inch, and using 

 large-sized glazier's " points " to keep the 

 glass in position. These are triangulai', 

 and one corner is turned down, so that, 

 when driven into the wood, it keeps the 

 glass in place, preventing it from slip- 

 ping down. No putty is used on the 

 top, but two coats of thick white lead are 

 put on, so as to fill up any crevice that 

 may be between the glass and the wood. 

 The size of glass varies according to 

 what it is wanted for. If for portable 

 3X6 feet sashes, they will be stronger by 

 using 6X8 inch glass put in the 6-inch 

 way; but if for green-houses or graperies, 

 requiring as much light as possible dur- 

 ing the winter months, not less than 

 10X12 glass should be used, put in the 

 12-inch way. The quality of the glass is 

 a matter of cost; when that is not of con- 

 sequence, the first quality double thick 

 American or French glass should be 

 used. For such, however, as begin with 

 limited means, or who wish to be eco- 

 nomical in such matters, second quality 



GRA 



single thick American glass will answer, 

 provided it is clear from blotches, such 

 as will form a lens to concentrate the 

 sun's rays, and burn the foliage. This is 

 one of the most important points in 

 choosing glass, and from which the un- 

 initiated often suffer. 



Globose. Bound like a globe, as the heads 

 of flowers of Echinops. 



Globuline. Elementary cells; starch 

 grains. 



Glochis, (adj. Glochidate.) A barb; 

 hooked back at the point like a fish-hook 



Glomerate. Collected into close heads or 

 parcels. 



Glomeruli. The same as Soredia, which 

 . see. 



Glomerulus. A cluster of capitules in- 

 closed in a common involucre, as in Echi- 

 nops. 



Glossology. That part of botany which 

 teaches the meaning of technical terms. 



Gluma, Glume. The exterior series of the 

 scales which constitute the flower of a 

 grass. 



Glumaceous. Plants are said to be gluma- 

 ceous when their flowers are like those 



Glutinium. The flesh of certain Fungi. 



Glutinose. Covered with a sticky exuda- 

 tion. 



Gnomonical. Bent at right angles. 



Gongyhdes. Having an irregular, round- 

 ish figure. 



Gracilis. Slender, applied to parts which 

 are long and narrow. 



Grafting. This differs only from budding, 

 (which see,) inasmuch as the operation 

 is usually performed on deciduous plants 

 when in a partially dormant condition, 

 and that larger portions of the shoots are 

 taken. The different forms of grafting 

 are known as "wedge," "whip," "side" 



