1802 



THURBER 



his contributions to horticultural literature consisted in 

 editing, revising and bringing out the horticultural 

 and agricultural books of the Orange Judd Company. 

 After the death of Dr. Torrey, he was elected president 

 of the Torrey Botanical Club. He was also president of 

 the New Jersey Horticultural Society; Tice-president 

 of the American Pomological Society for New Jersey; 

 and honorary member of many scientific societies 

 throughout the world. The honorary title of doctor of 

 medicine was conferred upon him by the University 



2503. Typical (orm of Thuya occidentalis ( 



Medical College of New York. During the latter years 

 of his life he suifered severely from chronic rheuma- 

 tism, which finally resulted in heart degeneration and 

 ■ his death. Personally, Dr. Thurber was one of the most 

 genial of mon, s'pntip, ■iwp.-t-teiiipprpd. with a consider- 

 able share (tf i:-""! iriiiiifl lniniiT, always ready to help 

 those whom li. !• Ii mi ,1, .1 a^-i~taii.i-.' liberal-minded 

 and generous h. ;i i:iiilt; l.m .-i rrlmiii'ss foe to frauds, 



P. M. Hexamer. 

 THUYA (Thya or Thyia, an ancient Greek name for 

 a resinous tree or shrub). Also spelled Thuja or Thniu. 

 Including Biota. Coniferce. ArborviTvE. Ornamental 

 evergreen trees of narrow pyramidal habit, with much 

 ramified branches, the branchlets arranged frond-like, 

 flattened and clothed with .small scale-like leaves; the 

 fruit is a small strohil.- or .■..tip ii<.t p\c, . .lii]- 1 in. in 

 length. Tlipn.IiliM uT ', ' i ln.lv north 



and also T. J ' I li-j-nis of 



r. < 



fav 



regu- 



v;ii> I I I I I I .iiid in color of foliage. For plant- 

 iiiL' iniins in parks they are mostly too 



siiil I I 111 they ar3 well suited for massing 



on l..ii. II MMs or lakes. The m..st bpuutiful and 



the uH'st r,i[iull\ i^rnw ing species i.s T. '/'m " ' Ilmi i-- . 

 are well ada[)tpd for hedges and wind III I i ' i 



pruning well and soon form a dense In .1 I 



best in somewhat moist, loamy soil and I m |~ 



planted. Prop, by seeds sown in spring. Tlip ^ :ii n ii. -. 

 especially those of T. occidentalis. are usually prop. h\ 

 cuttings taken late in summer and kept during' tlip 

 winter in a cool greenhouse or frame; also by grafting 

 on seedling stock in summer or early in spring in the 

 greenhouse. The vars. of T. (liqaniea and T. orientalis 

 are usually grafted, since they do not grow readily from 

 cuttings, except the juvenile forms of the latter, as var. 

 deciissata and Meldensis. Consult Retinixpora. 



Five species occur in N. America, E. and Cent. Asia. 

 Resiniferous trees with short horizontal, much ramified 

 branches; the branchlets flattened and frond-like ar- 



THUYA 



ranged: Ivs. decussate, scale-like, appressed, usually 

 glandular on the back: fls. monoecious, globose, small, 

 terminal on short branchlets, staminate yellow, consist- 

 ing of usually 6 opposite sta- 

 mens, each with 2-4 anther- 

 cells ; pistillate consisting of 

 8-12 .scales in opposite pairs, 

 of which only the middle ones, 

 or in the section Biota the 

 lower ones, are fertile, each 

 scale with 2 ovules inside at 

 the base: strobiles globose- 

 ovate to oval-oblong, with 2 

 seeds under the fertile scales. 

 The wood is light and soft, brit- 

 tle and rather coarse-grained, 

 durable in the soil; it is much 

 used for construction, cabinet- 

 making and in cooperage. T. 

 occidentalis contains a volatile 

 oil and thujin and is some- 

 times used medicinally. 



A. Cones pendulous, with thin 

 scales, apiculate below 

 the apex : seeds winged, 

 compressed: branchlets 

 ramified more or less 

 horizontally, with a dis- 

 tinct upper and under 

 side. 



,1,1 In 



bluish 2504. Seedline of Thuya 

 i.sually 2 occidenulis (X Vx). 

 pairs of fertile scales. 

 occidentilia, Linn. Common Arborvit.*;. Erroneously 

 but commonly called White Cedar (which is prop- 

 erly Chamfficyparis). Figs. 2503-5. Tree, attaining (iO 

 ft. and more, with short horizontal branches ascending 

 at the end and forming a narrow pyramidal, rather com- 

 pact head: Ivs ovate, acute, usually glandular, bright 

 green above, yellowish green beneath, changing in win- 

 ter usually to dull brownish green: cones oval to oval- 

 oblong, about J-a in. long, brownish yellow: seeds % 

 in. long. New Brunswick to Manitoba, south to N. C. 

 and III. S.S. 10:5:52. -Much used for telegraph poles. 

 A great number '>f ■_';tr 

 vation. The l.p-i 1 ni 

 Nichols, (var. .>/'- 

 Hort.). Tips Pl 

 tea, Carr. (var. " 'i - 

 variegated silvery wliii 



bushy form, with deep yellow foliage; also var. Biir- 

 rowii, Douglas' Golden and Meehan's Golden are forms 

 with yellow foliage. See also var. lutea. Var. aureo- 

 variegita, Beissn. (var. aurea maculdta, Hort.). Foli- 

 age variegated with golden yellow. Var. cbnica d6nsa. 



about 50, are : 

 IP following: Var. 41ba, 

 I . Var. Queen Victoria, 

 li ts white. Var. argin- 

 , Beissn.). Branchlets 

 ailrea, Nichols. Broad 



2505. The Arborvita;— Thuya occidentali 



Nearly full ; 



Hort. "Dense conical form." Var. Columbia, Hort. 

 "Strong habit; foliage broad, with a beautiful silvery 

 variegation." Var. crist4ta, Carr. Irregular dwarf, 

 pyramidal form with stout crowded, often recurved 

 branchlets. Var. Oouglasii, Rehder. Bushy form, with 



