1412 



GREENS 



GREVILLEA 



Rosella, Hibiscus Sabdariffa. 



Salad-Burnet, Porterium Sanguisorba. 



Sorrels, various, Oxalis crenata, O. tetraphylla. 



Spinach, Spinacia oleracea. 



Tuberous-Rooted Chinese Mustard, Brassica napiformis. 



Turnip, Brassica Rapa. 



Winter Purslane, Monlia per/oliata. 



Culture. Pot-herbs are wanted at the earliest pos- 

 sible moment in the spring. They are, therefore, often 

 grown in hotbeds, frames, or in greenhouses (see 

 Spinach, Dandelion, Mustard, etc.). They must be suc- 

 culent and tender. It is necessary, on this account, 

 that they be quickly grown in loose, very rich, well- 

 drained soil, with plenty of water. Specific directions 

 for the cultivation of the various plants will be found 

 under the several heads. jr A. WAUGH. 



GREG6RIA: Douglasia. 



GREIGIA (Major-General Greig, Russian horti- 

 culturist). Bromelidcese. A few species of large Andine, 

 terrestrial or rock-loving herbs, allied to Cryptanthus, 

 from which it differs in its simple rather than panicled 

 inn. Fls. perfect; sepals free or lightly joined at the 

 base, linear or ovate-lanceolate or almost subulate; 

 perianth with free elliptical segms. rounded at apex; 

 stamens shorter than petals or scarcely exceeding them ; 

 petals rose-color or white suffused with rose, becoming 

 brownish. G. sphacelata, Regel (Billbergia sphaceldta, 

 R. & S. Bromelia sphacelata, Ruiz & Pav.). Stout 

 pineapple-like plant, 3 ft., with strong spiny-margined 

 spreading or recurving Ivs. : fls. rose-color, in dense heads 

 in the axils of the Ivs., the outer bracts spiny and very 

 acute. Summer. Chile. A showy plant. L. jj g 



GRENADIN or GRENADINE: A type of carnation. 



GREVILLEA (Charles F. Greville, once vice-presi- 

 dent of the Royal Society of England, and a patron of 

 botany). Proteacex. Trees and shrubs, of about 200 

 species, mostly Australian, one of which is commonly 

 cultivated in this country as a decorative pot-plant and 

 also in the open in southern California and elsewhere 

 in warm regions. 



Leaves alternate, very various: fls. small, perfect, 

 mostly in pairs in the clusters or racemes, apetalous, 

 the calyx with 4 recurved parts; stamens of 4 sessile 

 perfect anthers borne on the sepals; style 1, long and 

 curved: fr. a follicle, with 1 or 2 winged orbicular or 

 oblong flat seeds. The fls., sometimes showy and orna- 

 mental, are terminal and axillary, the racemes some- 

 times umbel-like. The fls. of some species produce 

 honey. Some species yield useful timber. 



A. Racemes secund, many-fld.: Ivs. much cut or com- 

 pounded. 



robusta, Cunn. SILK OAK. Fig. 1768. One of the 

 most popular of all fern-leaved pot-plants. When young 

 (from 2-5 ft. high) it makes a most graceful subject. 

 In glasshouses it is not grown to large plants, and, there- 

 fore, little is known of the great size which it attains 

 in its native forest. According to Von Mueller, it is 

 ''indigenous to the subtropical part of E. Austral., ris- 

 ing to 150 ft., of rather rapid growth, and resisting 

 drought to a remarkable degree; hence one of the most 

 eligible trees even for desert culture, though naturally 

 a sylvan plant. The wood is elastic and durable, valued 

 particularly for staves of casks, also for furniture. 

 The richly developed golden yellow trusses of fls. 

 attract honey-sucking birds and bees through several 

 months of the year. The seeds are copiously produced 

 and germinate readily. Rate of growth in Victoria, 

 20-30 ft. in 20 years. In Ceylon it attained a stem- 

 circumference of 5 ft. in 8 years." In Calif, and S. Fla. 

 it is a street lawn tree, although the branches break 

 easily in exposed places. When grown in the open, it 

 will stand some frost. As a glasshouse plant it is grown 

 almost wholly from seeds, and is used in its young state; 

 as the plant becomes old, it loses its leaves and becomes 



ragged below. It thrives in the temperature suited to 

 geraniums or roses, and it stands much hard usage and 

 neglect. It is popular as a window subject. Best results 

 with grevillea are usually secured by raising a fresh 

 stock every year, from seed sown late in winter or in 

 spring. The following winter or spring they will be in 

 4-6 in. pots, and will be in their prime. The young 

 plants need frequent repotting to keep them in good 

 condition. Grevillea robusta has come to be generally 

 known as a florists' plant within the past thirty years. 

 Lvs. twice-pinnatifid (or the pinnae deeply pinnatifid), 

 or nearly 3-pinnate under cult., the ultimate divisions 

 narrow and pointed and sometimes lobed, pubescent: 

 racemes 3-4 in. long, solitary or several together on 

 short leafless branches of the old wood; fls. orange, 

 glabrous, the tube J^in. long, the parts revolute: fr. 

 about %in. long, broad, very oblique. B.M. 3184. 

 G. 2:615; 8:680. G.L. 24:40. A.G. 14:115. A.F. 

 4:413. In the W. Indies the plant is much grown, and 

 it is often trimmed to desired shape. In exposed places 

 the foliage becomes golden in cast. Var. compacta, 

 Hort., is a condensed dwarf form with handsome foliage, 

 G.C. III. 49:375. G.M. 54:452. G. 33:393. F. E! 



1768. Grevillea robusta. ( X Ye,) 



31:1259. Var. pyramidalis, Hort., is offered abroad. 

 Var. Fdrsteri (G. Forsteri, Hort.) is a form of G. robusta. 

 It has silvery foliage, large trusses of deep bright red 

 fls., and much stronger growth. R.B. 24:3. 



Thelemanniana, Hueg.(G. Preissii, Meissn.). Spread- 

 ing shrub, the young growths soft-tomentose: Ivs. 1-2 

 in. long, pale or glaucous, pinnate, the lower pinnae 

 usually divided, segms. linear: racemes terminal, 

 rather dense, 13^ in. or less long; fls. pink with green 

 tips, few-hairy outside and bearded inside, the tube 

 about J^in. long: fr. about %in. long, smooth. B.M. 

 5837. R.H. 1882:456. J.H. III. 42:497. H.U. 6:193. 

 G.W. 5:499. Now popular in Calif. 



Banksii, R. Br. Tall shrub or slender small tree, with 

 branches rusty-tomentose : Ivs. 48 in. long, pinnate or 

 deeply pinnatifid, the segms. 3-11 and broad-linear or 

 lanceolate, margins revolute: racemes terminal, erect 

 and dense, 2^4 in. long; fls. red, tomentose outside and 

 glabrous inside: fr. about 1 in. long, obliquely ovate. 

 B.M. 5870. G.C. III. 16 : 15. Offered abroad. 



AA. Racemes not secund, dense and usually short, some- 

 times panicled: Ivs. less divided, often only lobed. 

 Hilliana, F. Muell. Large tree, with minutely 

 tomentose young branches: Ivs. 6-8 in. or more long, 

 sometimes entire and obovate-oblong or elliptical and 

 very obtuse, sometimes deeply divided or even pinnati- 



