GOKDONIA 



GORDONIA (after James Gordon, iin English nursery- 

 man; died 1780). Ternstrcemittreiv. Ornamental trees 

 and shrubs with alternate, simple, rather lar^e. deeidu- 

 ous or persistent Ivs., axillary, showy white tls. and a 

 woody capsule. Only G. pabesoens is hardy north to 

 Mass., while the others are cultivated only in sub- 

 tnipical regions. They all liave very handsome shining 

 foliage, and produce their large white ds. even on rather 

 small plants. They gi'ow best in a somewhat moist, 

 peaty or sandy soil. Prop, by seeds, layers or catlings 

 from half-ripened wood under glass. Aliout 15 species 

 in the S. Atlantic states and sulitrop. and trop. Asia. 

 Fls. solitary and axillary toward the (^nd of tlio branches; 

 sepals and x>etal3 5, rarely mor<'; stamens nuincrnus: 

 capsule 5-celled, dehiscent witli 2 or many usuallv 

 winged seeds in each cell. 



P. J. Berckmans writes that a large tree in the Bar- 

 tram garden, near Phihidelphia, was long supposed to 

 be the only living specimen of G. pnhpscens. All other 

 specimens in cultivation are believed to have been 

 propagated from the Bartram tree, which has lately 

 died. All efforts since 1790 to rediscover this tree in the 

 Simth have failed. 



A. Foliage deciduous. 



pub6scen9. L'Herit. ((?. AUamdJia, Sarg.). Shrub or 

 tree, to 30 ft. : Ivs. obovate-oblong, narrowed into a short 

 petiole, sparingly serrate, bright green and shining 

 above, glabrous, turning scarlet in fall, 5-6 in. long: 

 Hs. short-pedicelled, pure white, about 3 in. across; 

 petals roundish obovate, with crenulate margin, con- 

 cave: capsule globular. Sept., Oct. Georgia, but not 

 found again since 1790. S.S. 1:22. G.^V. P. 47. Mn. 

 G:20L Gng. 7:107. M.D.t;. 1899:25.-(.)ne of the few 

 trees that iiower in autumn. 



AA. Folia ijc ererijri'cii. 



Lasidnthus, Ellis. Loblolly Bay, Tree, to 00 ft., 

 usually shrubby in cult.: Ivs. obovate-lanceolate, nar- 

 rowed into a short petiole, crenately dentate, dark green 

 and shining above, 4-6 in. long: tls. long-pedicelled, 

 white, 2-2,^2 in. across; petals oblong-obovate; stamens 

 short: capsule ovate. July, Aug. Va. to Fla. and Miss. 

 S.S. 1:21. B.M. 668. 



an6mala, Spreng. Large shrub: Ivs. oblanceolate, nar- 

 rowed into a very short petiole, entire or serrate, dark 

 green above, 3-6 in. long: fls. almost st-ssile, creamy 

 white, 2-3 in. across; petals roundish <jl>ovate. Nov. 

 S.China. B.M. 4019 (as Po///.';/>o/v( (ixiljaris). B.M. 2047 

 and B.R. 4:349 (as Camellia axillaris). 



G. Javdnica, Rolliss. See Seliiina Noronhre. 



Alfred Rehdek. 



GORSE. Ulex. Uwropams. 



GOSStTIUM (name used by Pliny, probably from the 

 Arabic). Malvdcea'. Cotton (which see). Probably 

 not more than a dozen original species, although more 

 than 100 have been described. The species which have 

 produced the cultivated Cotton are now much confused. 

 Two or three species are in the trade for ornamental 

 purposes : G. Davidsonii, Kellogg, from Lower Califor- 

 nia, a woody plant with handsome yellow but rather 

 small fls. (1 in. long), and small cordate, mostly entire 

 Ivs, G. Stiirtii, F. Muell. A shrub of several feet, more 

 or less marked with black dots : Ivs. broadly ovate, 

 entire: fls. large, purple, with a dark center. 



L. H. B. 



GOUANIA (Antoine Gonan, 1733-1821, professor of 

 botany at Montpelier, France}. Jiliitui iti}cea:. This ge- 

 nus includes the "Chawstick " of .Jamaic;i, a rapid-grow- 

 ing, shrubby vine, with pretty heart-shaped Ivs.. grown 

 sometimes for ornament in the extreme South. It is 

 suitable for screening unsightly objects. The stems are 

 chewed in the West Indies. Tooth brushes are made 

 from the frayed ends and tooth-powder from the pul- 

 verized w^ood. The genus has about 30 species of shrubs, 

 sometimes tall climbers, tendril-bearing : branches 

 long and slender : Ivs. alternated, petiolate, penni- 

 nerved, entire or dentate : fls. in clusters, arranged 

 along axillary and terminal, elongated peduncles ; disk 

 5-lobed; style 3-fid: capsule with 3 indehiscent berries. 



GRAFTAGE 



659 



Doming6nsis, Linn. Lvs. usually 1^-2 in. long, ellip- 

 tical, glalirate, with lilunt, distant serratures ; veins 

 tai»ering towards the margin : capsule winged, emargi- 

 nate. West Indies. 



GOUMI. See Ela^n.jnns. 



GOURD. In England, a generic name for species of 

 (kicurbita (which see). In America the (erm is used to 

 designate those cucurliitous fruits which are hard- 

 shelled, and are used for ornament or for the making of 

 domestic utensils. The Gourd of history is probably 

 Lagenaria. In the northern United States, the small, 

 liard-shi-lled forms of Ciimrbita Pepo (var. ocifera) are 

 ■■ommoiily understood when the word Gourd is used. 

 The Gourds in tiie Amer. trade are referable to their 

 species as follows: 



Anaconda, La'jrnaria vv.l- Onion-shaped, Cucnrhita 



oaris. Pepo. 



Apple-shaped. CJ ucurb Ha Oraiiga, Oacurbita I'vpo. 



Fepo. Ostrich Et,'g, Cucinni.s dip- 



Eicolur. Cacvrbita Pepo. s-aceas. 



Bonnet. Luffa. Pe:ir-shap6cl. Gucurbild Pi'po 



Bottie-sbaped, Lauenarla vui- (Fig. 507). 



(fi-i'is. Powder Horn, Latjc-iL'iria vut- 



CiLhi^y.i'Ah , Lagenaria vtilgari s . garis. 



' 'nloiiuinte, (Juciirhita Pepo. K;ig. Luffa. 



iMpper, Lagenaria vulgaris. Serpent or Snake (nut Snako 



I>ipsaire(jus. (Juciiinift dip- ( 'aciiudier, which is a Oncu- 



saccus. mis; I , Liujcaaria vulgaris 



Dish-cloth, Luffa. ;iTid Trirhusaat/ies. 



Egg, Egfi-shape. Cucurbits, Sponge, Luffa. 



Pepo. Spoiin, L ig'^naria vulgaris. 



Go o seller xy, Gucumis An- .Sug;i:rTrou)ili, Lagenaria vul- 



guria. garis. 



Hedg&ho(^, Gucumis dipsaceuti. Tashkent. Gacurbita Pepo. 

 Hercules' Club, Lagenaria Turk's Turban, Gucurbita 



vulgaris. Pepo. 



Mate Gourd, small form of Vegetable Sponge, Luffa. 



Lagenaria vulgaris. Wax (jfourd, Benincasa ct-rif- 



Mof.-k Orange, Gacurbita era. 



Pepo. 



L. H. B. 



GRAFTAGE comprises the process and operation of 

 inserting a part of one plant into another, with the in- 

 tention that the part shall grow on the foster root, to- 

 gether with all the questions which arise in relation to 

 the practice. It is a comprehensive or generic term, 

 w^hereas firaftinr/ is a specific term designating merel}' 

 the operation. The term Graffage (analogue of the 

 French greffage) was proposed by the present writer in 

 1887. 



Grafting is one of the oldest of the arts of plant-craft. 

 It is probable that the real art of grafting has held more 

 or less as a professional or class secret in the ancient 

 world, for the writers seem to have only the vaguest no- 

 tion of its possibilities and limitations. Vergil writes 

 ( Preston's translation) : 



But thou shaft lend 

 (-Jrafts of rude arbute unto the walnnt free, 

 Shalt bid tlie unfruitful plane sound iipples bear. 

 Chestnuts the beech, tlie ash blow white with the pear, 

 And, under the elm. the sow ou acorns fare. 



It seems to have been a popular misconception that 

 any kind of plant will grow on any other. Pliny asserts 

 that the art of grafting was taught to man by nature. 

 Birds swallow seeds, and these seeds, falling in "some 

 cleft in the bark of a tree," germinate and make plants. 

 "Hence it is that we see the cherry growing upon the 

 willow, tlie plane upon the laurol, the laurel upon the 

 cherry, and fruits of various tints and hues all spring- 

 ing from the same tree at once." This, of course, is not 

 grafting at all, but the implanting of seeds in earth- 

 filled chinks and cracks, in which the plants find a con- 

 genial foothold and soil. But tlie ancients have left us 

 abundant testimony that genuine grafting was employed 

 with success. Pliny describes a cleft-graft. He gives 

 several precautions: the stock must be "that of a tree 

 suitable for the purpose," and the graft must be "taken 

 from one that is proper for grafting ; the incision or 

 cleft must not l)e made in a knot; the graft must be 

 from a tree "tliat is a good bearer, and from a young 

 shoot;" the graft must not be sharpened or pointed 

 "while the wind is blowing;" "a graft should not be 

 used that is too full of sap, no, by Hercules! no more 

 than one that is dry and parched;" "it is a point most 



