3540 



ZEBRINA 



ZELKOVA 



equal; fls. few, sessile, in 2 conduplicate bracts. Two 

 species, Mex. and Texas. 



pendula, Schnizl. (Tradescdntia zebrina, Hort. T. 

 tricolor, Hort., in part. Cyanbtis vittdta, Lindl. Com- 

 mellna zebrina, Hort.). WANDERING JEW, in part. 

 Fig. 4041. Trailing, half-succulent, perennial herb 

 rooting at the joints: Ivs. lance-ovate, 

 sessile, the If.-sheath about Hin. long 

 and hairy at top and bottom and some- 

 times throughout its 



length; Under Sur " 

 face of * d-purple; 

 upper surface silvery 

 white, suffused with 

 purplish, the central 

 part and the margins 

 purple - striped : fls. 

 about 2, rose - red, 

 contained in 2 boat- 

 sb iped bracts, one 

 of which is much 

 smaller than the 

 other. Mex, Com- 

 .monly confused with 

 Tradescantia flumi- 

 nensis, Fig. 3829, and 

 sometimes with Com- 

 melina nudifiora. See 

 Tradescantia. The Ivs. 



of Z. pendula seem 

 4040. Ears of Zeacamna. a, Second i 



year from the wild. Cob flattish. b, 2,i ver 

 Third year from the wild. Kernels less . L ne y vary somewhat 

 pointed. Cob nearly cylindrical. ( X %) m color. All forms 



are easily grown, and 



they prop, readily from pieces of st. Var. quadricolor, 

 Bailey (forma quadricolor, Voss. Tradescdntia quadri- 

 color and T. multicolor, Hort.). Lvs. with metallic green 

 undertone and striped with green, red, and white. 

 Handsome. L H. B. 



ZELKOVA (after the vernacular name Zelkoua in 

 Crete, or Selkwa in the Caucasus). Syn., Abelicea, and 

 including Hemiptelea. Ulmaceae. Ornamental trees grown 

 for their handsome foliage and attractive habit. 



Deciduous: Ivs. alternate, short-petioled, penni- 

 nerved, serrate, stipulate: fls. polygamous, the perfect 

 ones solitary in the axils of the upper Ivs., the staminate 

 ones clustered in the axils of lower Ivs. or bracts; calyx 

 4-5-lobed; stamens 4-5; styles 2: fr. a 1-seeded drupe, 



usually broader 

 than high, ob- 

 lique, with the 

 style eccentric. 

 Five species in 

 Crete, the Cau- 

 casus, and E. 

 Asia. They are 

 closely related to 

 Celtis and Aph- 

 ananthe and 

 are chiefly dis- 

 tinguished b y 

 the connate 

 sepals, the eccen- 

 tric style and the 

 oblique fr. Z. 

 serrata is an im- 

 portant timber 

 tree; the wood 

 is very durable, 

 and considered 

 the best build- 

 ing material in 

 Japan . The 

 young wood is 

 4041. Zebrina pendula. (X 1 A; fl. enlarged) yellowish white 



in color; the old wood is dark brown arid has a beauti- 

 ful grain. 



The zelkovas are trees, sometimes shrubby, in general 

 appearance much like some of the small-leaved elms, 

 with rather small more or less two-ranked short-stalked 

 leaves, with insignificant greenish flowers appearing at 

 the base of the young branches and followed by incon- 

 spicuous fruits. Z. serrata and Z. Davidii are hardy 

 North, while Z. ulmoides is hardy only as far north as 

 Massachusetts, at least only in sheltered positions. Z. 

 serrata is a very graceful round-headed tree and well 

 adapted for avenues or as single specimens on the lawn. 

 Z. Davidii, which is of recent introduction, may be use- 

 ful as a hedge-plant on account of its upright rather 

 stiff stems armed with spines. They do not seem to be 

 very particular as to soil and position. Propagation is 

 by seeds sown soon after ripening; also by layers and 

 by grafting on Ulmus. 



A. Fr. not winged: branches not spiny. 



serrata, Makino (Z. acumindta, Planch. Z. hirta, 



Schneid. Z. Kedki, Mayr. Z. cuspiddta, Hort. Planera 



acumindta, Lindl. Planera japdnica, Miq. Planera 



Kedkii, C. Koch. Ulmus Kedkii, Sieb.). Fig. 4042. 



4042. Zelkova serrata. ( X 1 A) 



Tree, attaining 100 ft., with broad, round-topped head: 

 branches slender: Ivs. short-stalked, ovate to oblong- 

 ovate, acuminate, rounded or slightly cordate at the 

 base, sharply and coarsely serrate, with acuminate 

 teeth, pairs of veins about 10, somewhat rough above, 

 almost glabrous, 1-2 H in. long on fertile branches, 2-5 

 on sterile branches. April, May. Japan. G.F. 6:325. 

 Gt. 37, pp. 22, 23. S.I.F. 1:36. G.W. 16, p. 216. 



ulmoides, Schneid. (Z. crenata, Spach. Z. carpini- 

 fdlia, Koch. Planera Richardii, Michx. Planera car- 

 pinifolia, Wats. Planera crenata, Desf. Abelicea ul- 

 moides, Kuntze). Tree, attaining 80 ft., with slender 



