548 



The Dictionary of Gardening. 



OiSNTIANA. To the species described on pp. 59-61, 

 Vol. ir., the following should now be added : 



G. arvemensis (Auvergne). A beautiful little alpine Gentian, 

 allied to G. Pneumonanthe^ but more robust and tufted in habit, 

 with much deeper blue flowers, and firmer and broader leaves. 

 It lasts many weeks in blossom. 1882. Probably a new form of 

 <J. Pneumonanthe. 



G, Bigelovii (Bigelow's), fl. violet, sessile, axillary, arranged in ' 

 a leafy spike ; calyx tube purplish, cyliudric, with long-linear, 

 green teeth ; corolla about lin. lon^, two subulate teeth alter- 

 nating with the ovate, sub-acute lobes. August. I. linear or 

 linear-oblon^', 2in. long. h. 1ft. to \\it. New Mexico, 1886. 

 (B. M. 6874.) 



G. dccumbcns (decumbent). /. blue, in a racemiform cyme ; 

 coTi'lla narrow, obconical, with five short, ovate lobes. I. linear- 

 lanceolate, scabrous on the margins. Stems ascending. Siberia. 

 (R. U. 1087, f. 1-2.) 



O. Fetisowi (Fetisow's). A deep blue, sessile, in terminal, 

 compact clusters, and solitary or clustered in the axils; corolla 

 tubular-Ccimpauulate, the segments slightly acute. July and 

 August. I, narrow-lanceolate, five-nerved, entire; cauHne ones 

 connate ; radical ones rosnlate. Stem solitary, tall, erect. 

 Turkestan. 1883. Plant highly glabrous. (R. G. 1069, f. 1-5.) 



G. Kosselringi (Kesselring's). /. whitish, dotted outside with 

 violyt, sub-sessile in glomerate, terminal racemes ; corolla tubular- 

 ventHcone, the linvh of five ovate, spreading lobes, shortly 

 apiculate at apex. July and August, l.^ radical ones numerous, 

 iinear-lauceolatti, acute ; cauliiie ones opposite, oblong-lanceolate. 

 Stems about Sin. high. Turkestan, 1883. (R. G. 1087, f. 3-4.) 



G. Moore rofti ana (Moorcroft's). jl. solitary at the ends of the 

 branchoci or in leafy cymes; calyx tube Jin. long; corolla pale 

 blue, jin. to llin. long, funnel-shaped, ttie throat naked and 

 without folds, the lobes ovate, iln. long. Summer. I. lin. to 

 IJin. long, sessile, linear-oblong or elliptic, obtuse or sub-acute, 

 nepvelewrt. Stem simple or branched from the root. A, 4in. to 

 lOin. Western Himalayas. Annual, (B. M. 6727.) 



G. Ollvieri glomerata (<)livier*s compact). /. deep blue, 

 usually very numerous, sessile or nearly so, densely cymose-sub- 

 capitate or in an unintenupteilly glomerate raceme. July, h as 

 in G, FetUom, but narrower. Turkestan, 1883. (R. G. 1069, 

 f. 6-7.) 



G, sceptrum (sceptre). Jl. deep blue, large, borne in terminal 

 clusters. Stems fleshy, 1ft. to 2ft. high. 



G. triflora (three-flowered). Jl. blue, large and handsome, some- 

 what like those of G. Pneumonanthe. Late autunm. /, linear- 

 lanceolate, smooth, glossy dark g.een. h, 1ft. Mountains of 

 Central Asia. (R. G. 1189.) 



G, vema aestiva (summer), A form with larger flowers than the 

 type. 



G. Wallichiana (Wallich's). Ji, light blue, in axillary, terminal 

 clusters. July and August. Stems Sin. to 12in. long, nearly 

 prostrate. 



G, Walujewl (Walujew's). /. whitish, dotted pale blue, sessile, 

 densely crowded in a head-like, terminal cyme; corolla Jin. 

 in diameter, the lobes elliptic-lanceolate, acute. Late summer! 

 I., radical ones numerons. coriaceous, lanceolate, narrowed into 

 short petioles ; cauline ones sessile, elliptic or lanceolate, opposite. 

 Stems solitary or twin, growing erect from the rosette of radical 

 leaves. Turkestan, 1884. (R. G. 1140.) 



GEOBORUM. Stns. Cu-tella, Otandra, Of this 

 genua about nine species have been enumerated : they 

 inhabit the East Indies, the Malayan Archipelago, and 

 Australia. To those described on pp. 61-2, Yol. IL, the 

 following should now be added : 



O. X>tiperroanuni (Baron Duperr^'s). Jl, nine to fifteen in a 

 i^pikf ; sepals and petals white, linear-obluug ; lip white, with 

 purple veins, concave. L three or four, oblong-lanceolate 

 Cochin China. 1883. A pretty Orchid. 



GISRANITJM. To the species and varieties described 

 on pp. 62-4, Vol. 11., the following should now be added: 



G. Iiowii (Lota's). Jl. pink, in large clusters: stalks fleshy, 1ft 

 to 2ft. high. I. 3in. to 12in. in diameter, in five divisions, each 

 division again deeply divided. 



G. tuberosum Charlesii (Dr. Charles'), jf. rose-coloured, lin. 

 to liin. across, the petals enlarging till they fall off. i., radical 

 ones none ; lowest cauline ones long-petiolate, the uppermost 

 onessesdile. Af^jhanistan, 1885. (B. M. 6910.) 



GERKARDANTHUS (called after W. T. Gerrard, 



a collector at Natal). Ord. GiicurbitacecB, A small 

 genus (throe species) of stove or greenhouse, tall, gla- 

 brous climbers, natives of Western and Eastern tropical 

 Africa. Flowers jjroenish or fuscous, dioocioua ; calyx five- 

 lobed \ corolla rotate or campannlate, deeply five-parted ; 

 males racemose, with four stamens and an imperfect fifth ; 





Gerrardantlius — continued, 



females solitary, with an elevated, trigonal ovary. Fruit 

 small, elongated, terete, manj-sceded. Leaves* mem- 

 branous, cordate or hastate-cordate. (3. tomentosus, the 

 only species known to cultivation, is a stove perennial, ' 

 of botanical interest. Mr. Wood, now Superintendent 

 of the Katal Botanical Gardens, is recorded to have 

 found, on the top of and between large stones, tubers, one 

 of which '^ measured 6ft. in circumference, and was nearly 

 2ft. thick ; its surface was scarred ; and from the centre 

 arose a stem not more than fin. in diameter, thickly 

 covered with small, round tubercles, which ascended 

 without a leaf to the top of trees 50ft. high. On turning 

 over one of the tubers, it was found to have but one fibrous 

 root, about Jin. thick, . . . The natives do not appear to 

 put the plant to any use" ("Botanical Magazine/' 6694). 

 The plant may be increased by seeds. 



G. tomentosus (downy). J!. yellow, Jin. in diameter, the males 

 in short racemes, the females one or two together. //■. 3in. long, 

 obovoid, ten-ribbed, dry, opening by three lobes. I. large, cordate- 

 reniform, five-lobed. (B. M. 6694.) 



GETTM. To the species described on pp. 66-7, Vol. 11,. 

 the following should now be added : ^ 



G. rhroticum (Rhaetian Alps). _/f. golden-yellow, lin. across. 

 Summer. L, radical ones 3in. to 5in. long, lyrate, interruptedly 

 pinnate; side pinna? with coarse, deep serrations; terminal 

 leaflet large, heart-shaped, lobed. Stems numerous, 6in. to Sin. 

 high, erect, with three or four small, pinnate leaves. An 

 interesting natural hybrid between G. montanum and G. reptans, 

 discovered on the south side of Monte Rosa, 1886. (R. G. 1229.) 

 Syn. Sieversia rhcetica. 



GIiADIOLUS. To -^he species and varieties de- 

 scribed on pp. 70-1, Vol. II., the following should now be 

 added : 



G. Kotscliyanus (Kotschy's). /. light violet, about Uin. long, 

 with a nearly regular limb, the lower segments rather paler than 

 the others, witli a dark, median stripe; spike loosely few- 

 flowered ; scape 1ft. to 2ft. high, including the inflorescence. 

 May. I. linear, 6in. to 8in. long. Afghanistan, Persia, 1836. 



G. Papillo atratus (dark). A fine variety, the ground-colour 

 of the flowers beuig dark purple instead of yellow. 18&5. 



G. watsonioides (G. Watsonius-like). Jl. four to ten in a very 

 lax, unilateral spike; perianth bright scarlet, the tube curved, 

 1 Jin. long, the segments oblong or ovate, acute, lin. lon^^ ; spathe 

 valves curved, leafy, lanceolate. June. L, produced ones about 

 four, linear, erect, flrm, 1ft. to l^ft. long. Stem erect, 2ft. to 3ft. 

 long, with usually a couple of much-reduced leaves below the 

 inflorescence. Kilimanjaro, 1886. (B. M. 6919.) 



G. Watsonius (Watson's). Jl. two or three, each standing on a 

 peduncle-like tube, enclosed by a bifid spathe ; corolla bright red, 

 tunnel-shaped, the segments ovate-lanceolate, spreading. Feb- 

 ruary and March. I. three or four, Sin. long, upright, rigid, flat, 

 hnear-lanceolate. Stem 1ft. to l^ft. high. (B. M. 450.) A variety 

 in which the segments are variegated with yellow from the base 

 about half-way up, is figured in B. M. 569. 



Varieties. The subjoined are the best forms of G. ganda- 

 vensis quite recently introduced, and are all worthy of 

 culture in select collections. They have all received the 

 first-class certificate of the Eoyal Horticultural or some 

 other established society. 



Admiral Willis, red, flaked crimson and violet ; Appianus white, 

 with large rose blotch on lower petal; Calliphon, rose, flamed 

 with deeper rose, light centre; Chari.es Noble, orange-scarlet, 

 flaked and feathered rose; Chown Prince, carmine, flaked and 



li!lt™''^ crimson ; Dr. Woodman, salmon, flaked lake and rose ; 

 BucHEss OF EoxxBCRGH puipU^h-rose, flaked carmine ; Dum, 

 crimson shaded reddish-maroon ; Egyptian King, maroon. 



?.'i^.^^r?*'^'^""^^T^"iP'^' ^^'^' ^^'^ed and lined rose; James 

 iJOUGLAb, rosy-hlac. flamed crimson ; James Kelway. crimson 



and maroon, white hnes; Loud Randolph Chukchill, red. 

 w Pifowrv^A^^^^^ SALisiuttY, scarlet, crim.son centre ; Lord 

 \fl ^R^^^t*^^^' amaranth, flaked lake; Melton, sahuon-red ; 

 «^u;^«tii^'w^^'J^®'*^^"."''"®' striped red; Ma. Marshall, 

 ^nl^,?I^ lv„^l"rR^'^ carmme; Mr. Strtedinger, flesh, veined 

 vtormf '« ?^ w ^^^^^^5*'' :''i"^^ a»^^ pale yellow ; Prince Albert 

 HT Vwhlf!f:^^^o\' n^ked white ; Prince George crimson, scarlet. 



Or «h1 ^S^^T^ BEATRICE, white, violet stripes ; PRINCESS 



VIwtVJ rlliv,^^^'^ "^""^^i ^^- Oatien, vermilion, flaked crimson; 

 «a^ wu^ JJm^^\-^^''^^^^ ^"^ ^h^te blotches; Silenus, crim- 

 f^r^iV r*.n?>.J «^^ ^^"P^' ^^^ Massey lopes, orange-rose, with 

 \vu t?!m ^i,^w^ Trevor Lawrence, mulberry, flaked maroon; 

 \>iLLUM KELWAY. crimson-scarlet. blotched white. 



