OXALIS 



B.M.237(as O. caprina). A double-fld. form naturalized 

 about the Mediterranean is also commonly cult. F.S. 

 19:1964. -Both the single and double forms are fre- 

 ([uently but wrongly listed as O. hitva and O. flara, 

 and sometimes as O. caprhia, and the popular name of 

 Bermuda Buttercup is becoming attached to them 



OXYDENDRUM 



1183 



15. variabilis, Jaeq. {O. fariiibilis, var. albitldra, 

 Lindl. O. graiidindra, .]a,cq. O. ln.rula, JsMq. O. pur- 

 purea, var. ;dx«i«, Hort. O. rigidula, Jacq. O. su(/(iil- 

 W/n, Jacq.). Lvs. large, rather fleshy, sometimes pur- 

 plish, petioled: lis. large, white or slightly variegated 

 with rose color, yellowish at base. Cape. B.M. 1683. 



Var. rtlbra, .Jacq. (O. purpurea, Jaeq. O. specidsa, 

 Jacq. O. venusta, Lowe). Fls. rosy to deep rose-pur- 

 ple. Cape. B.R. 18:1505. B.M. 1712. 



16. hirta, Linn. (O. rosetcea, Jacq. O. mwlHfldra, 

 Jacq. O. rubilla, Jacq. O. hirtHla, Jacq. O. hllgida, 

 Lindl.). Lvs. nearly sessile; Ifts. spatulate: fls. from 

 lavender or pale rosy (var. rosea) to deep rose color. 

 Cape. B.R. 13:1073. B.M. 1031. L.B.C. 3:213. 



17. versicolor |0. «?o«5rd?a, Jacq.). Glandular: lvs. 

 and peduncles clustered at end of simple stems ; petioles 

 mostly elongated; Ifts. linear- wedge-shaped: fls. white, 

 yellowish below, the petals bordered with red, opening 

 only in full sunshine. Cape. B.M. 155. F.S. 8:834. 



Wm. Trelease. 

 OXfiBA (meaning dubious). VerhenHcece. It needs 

 but a glance at any of the colored portraits of Oiera 

 coi-fhirit to show that it is one of the most interesting 

 climbers cultivated in our hothouses. It has ivory- 

 white, trumpet-shaped, sweet-scented fls. 2 in. lung and 

 1 in. across, borne profusely in clusti r- mT :i ,1.,. , n ,.r 

 more. A plant 2 years old from ciii ' m- 



pletely clothe the rafters and bloom ii _lit 



of the clusters causing the fls. todi |. _; . iIil^ 



prominent calyx reminds one of Cli:i:ul, „.ii.,u l'i,,.,„p- 

 sonw, a distinguished favorite and near relative. As 

 the cylindrical part of the corolla-tube leaves the calyx 

 it makes a sharp bend and then broadens out into a 

 funnel-shaped flower, with the 4 lobes scarcely spread- 

 ing. The spirited appearance of the fls. is enhanced by 

 the long style and the 2 stamens, which are thrust out 

 and strongly curved. 



75 



Oxera is a genus of 10 species of shrubs, often 

 climbers, all from New Caledonia. Lvs. opposite, en- 

 tire, leathery: fls. whitish or yellowish, in twice- or 

 thrice-forked cymes, varying greatly in form of calyx 

 and corolla, but the latter always 4-lobed, and wide- 

 throated; drupes 4-parted or by abortion reduced to a 

 single segment. 



polch^Ua, Labill. Lvs. 2-5 in. long, stalked, the lower 

 ones oblong-lanceolate: calyx conspicuous, loose, com- 

 posed of 4 more or less united greenish yellow sepals, 

 each V^-Va. in. long. (in. 33:651; 45, p. 333. I.H. 36:76. 

 J.H. III. 30:33. B.M. 6938. G.C. III. 3:209. R.H. 1890. 

 p. 274. -Once offered by John Saul, Washington, D. C. 

 Also cult, outdoors in S. Calif. 



OX-EYE. In America, Heliopais ; in Europe, JSHp/i- 

 thulmum. Ox-eye Daisy. Chrysanthemum Liucanthe- 

 mum and Biidbevkia hirta. 



OXLIP. Pr. 



elatU 



OXYANTHUS (Greek, sharp flower; referring to the 

 acute lobes of the corolla and calyx). Jiubiaceie. A 

 genus of 15 species of African trees and shrubs, allied 

 to the Cape Jasmine and to Gardenia citriodora. They 

 are remarkable for their extremely long and slender 

 corolla-tubes, which are topped by a 5-pointed star of 

 spreading, narrow lobes. The fls. are sometimes 5-6 in. 

 long, and 2 in. across in cultivation. Lvs. opposite: fls. 

 usually white, in axillary racemes or panicles; calyx- 

 tube truncate, or with 5 short teeth; corolla salver- 

 shaped, throat glabrous ; stamens 5, inserted at the 

 mouth of the tube: ovary 2-celled, except in 1 species; 

 style usually exserted: stigma usually spindle-shaped 

 or club-shaped, 2-cut.at the top; ovules numerous, not 

 immersed in the 2 fleshy placentae: fr. a sort of berry. 



0XYC6CCUS. See Vaceinium. 



OXYDfiNDRUM (Greek, sour tree; from the acid 

 taste of the foliage). Also written Oxi/dendron. Eri- 

 cde'ea. Sour-wood or Sorrel-tree. A genus of one 

 species, a North American tree 15-40 ft. high, bearing 

 numerous small white tubular fls. in early summer. Its 

 chief licauty lu-s in the character of its inflorescence 

 (see Fii.'. 111114 1. wliirli is a panicle composed of 6 or more 

 racemi-^. iiuli ali^m :;-6 in. long and bearing as many 

 as two (1(17.111 in iidcnt fls. It is also valued for its highly 

 colored autumn foliage. It is of rather slow growth and 

 is useful in shrubberies, along the borders of woods, or 

 even within the woodland, since it endures shade fairly 

 well. It is of easy cultinv in .nny niiMlcrately good soil, 

 but rather slow in iM-'CiditiiiL'- ( -riil'li 1m ij. 



This tree is (.nc .if m:; '.!•,, nurserymen as 

 Andromedas. Tlic jik'; i' !• hms among botan- 



ists to-day distill. Ill, il; ; , ,ii many different 



genera, leaviim^ (inly .1. , ,. / ,■ m ^Vndromeda as 

 strictly defined. A h.i,"h/, :l,i ,t rliona is made a mono- 

 typic genus call((l ' t\\ (Icndrnm, based on the following 

 characters: calyx ciit intc .", s.-jiarate sepals which over- 

 lap more or less in tin- ycniiL,' tuids: corolla ovoid-cylin- 

 drical, crowned with .t short teeth: anthers long, linear, 

 blunt on the back, opening by long chinks down the 

 front: capsule woody; seeds numerous, needle-shaped. 



arhdreum, DC. (Andrimeda arbdrea, Linn.) Sour- 

 wood. Sorrel-tbee. Fig. 1604. Smooth-barked tree 

 attaining a maximum height of 60 ft., with trunk 15 in. 

 thick: lvs. deciduous, membranous, oblong or lanceo- 



