TABEBUlA (Brazilian name). Bignonidcete. Orna- 

 mental evergreen trees with opposite, long-petioled, 

 simple leaves and showy flowers in terminal, few-fld. 

 racemes. Only T. leucoxyla seems to be introduced. It 

 requires the same cultivation as the tropical species of 

 Tecoma, which see. The genus contains 5 or 6 species, 

 inhabitants of tropical America, closely allied to Te- 

 coma, but, according to recent monographs, chiefly dis- 

 tinguished by the simple leaves and the irregularly split- 

 ting tubular calyx; formerly also species with digitate 

 foliage were included, for which see Tecoma. 



Ieuc6xyla, DC. (Bignbnia leucdxyla, Veil. B. pdl- 

 lida, LindL). Evergreen tree or shrub: Ivs. elliptic- 

 oblong to obovate-oblong, obtuse or sometimes emargi- 

 nate at the apex, glabrous, dark green with distinct 

 pale midrib, 4-7 in. long: fls. in few-fld. terminal ra- 

 cemes; corolla funnel-shaped, about 2 in. long, with 

 yellow tube and pale lilac limb. Brazil. B.R. 12:965. 



ALFRED KEHDER. 



TABEKN.EMONTANA (J. T. Tabernaemontanus of 

 Heidelberg, physician and botanist, author of Krauter- 

 buch mit Kunstlichen Figuren ; died 1590). Apocynacece. 

 A genus of more than 100 species of trees or shrubs 

 widely scattered in tropical regions. Lvs. opposite, 

 penni-nerved: fls. white or yellow, in terminal or some- 

 times apparently but not truly axillary cymes; calyx usu- 

 ally short 5-lobed or parted; corollasalverform; stamens 

 inserted on the corolla-tube, included: berries large and 

 globose or small, oblique and recurved. See Gonioma 

 for distinctions from that genus. 



A. Fls. white. 



coronaria, Willd. CRAPE JASMINE. NERO'S CROWN. 

 A tender shrub, 6-8 ft. high: Ivs. glossy green, oblong 

 to oblanceolate : fls. white, fragrant, 1-2 in. across, in 

 1-8-fld. clusters in the forks of the branches; petals 

 crimped on the margin, whence the common name. 

 Cult, in India but native country unknown. Var. fldre- 

 pl&no, with double, somewhat larger, very sweet- 

 scented flowers, seems to be far more common in culti- 

 vation. P.M. 16:354. B.M. 1865 (stsNerium coronarium). 

 Cult, in the more southern states and also in green- 

 houses. Also known as Adam's Apple and East Indian 

 Rosebay. 



AA. Fls. yellow. 



grandiflora, Jacq. A small, tender shrub: Ivs. ob- 

 long-ovate, sharply acuminate, 2-3 in. long, thick: fls. 

 single, yellow, 1-2 in. long, in few-fld. clusters; corolla- 

 lobes oval, obtuse, entire. Early fall. Carthagena, 

 Guiana. B.M. 5226. Rarely cult, in the more southern 

 portions of the United States. 



T. Camdssi, Regel. See Gonioma Karnassi. 



F. W. BARCLAY. 



The East Indian Rosebay, Tabemcemontana coro- 

 naria, is one of the best ornamental shrubs for sub- 

 tropical gardens. This species and T. Camassi, re- 

 ferred in this work to Gonioma, flourish everywhere in 

 Florida from Jacksonville southward. If they receive 

 proper attention, tiny cuttings soon develop into dense, 

 bushy plants 3-5 ft. high, covered with deliciously 

 scented flowers throughout the summer. Indeed the 

 plants are so densely covered with buds and flowers 

 that it is often difficult to find a sufficient supply of 

 cuttings for propagation. T. coronaria has larger 

 leaves than T. Camassi and the flowers are much like 

 those of the double white oleander, while T. Camassi 

 has solider and smaller blossoms. Both do well under 

 the same treatment. In order to enjoy the beauty of the 

 East Indian Rosebay to its fullest extent, it must be 

 planted in rich, sandy soil, not too wet and not too dry, 

 and in places fully exposed to the sun. Only very 

 strong pot-grown plants should be set out in the gar- 

 den. This should be done during the rainy season. 

 Avoid breaking the ball in transplanting. It is use- 



less to transplant in November, the time when most 

 evergreens and other plants are most successfully set 

 out. The plants at this season have no time to become 

 established before the first sharp frost comes, and a 

 weakened Tabernaemontana is usually killed outright by 

 even a slight frost. Just before Christmas all the plants 

 of this nature (bauhinias, cestrums, Poinciana regia, 

 Tristania conferta, grevilleas, eucalypti, etc.) are 

 banked about 18 inches to 2 feet high with dry sand, and 

 they always come through without much damage. In 

 April or even earlier, the banking is taken away and the 

 plants cut back to sound wood. The Tabernaemontanas 

 look best in groups by themselves or in front of other 

 glossy-leaved evergreens. H NEHRLING. 



TACAMAHAC. Populus balsamifera. 



TACCA (Malayan name). Taccacece. A genus of 9 

 species from tropical regions. Perennial herbs from a 

 tuberous or creeping rhizome with large, radical, peti- 

 oled leaves and umbels of lurid brown or greenish flow- 

 ers in a dense umbel borne on a leafless, rigid scape. 

 The flower-cluster is subtended by a few, usually 4, 

 leaf-like or colored bracts, and intermixed with the 

 flowers are more or less numerous, long and conspicu- 

 ous, sterile, filiform pedicels, which usually droop be- 

 low the flower-cluster. 



A. Lvs. much lobed. 



pinnatifida, Jack. Tender perennial herb, about 2 ft. 

 high: rootstock globose, becoming 1 ft. through: Ivs. 

 large, usually 3-branched, the divisions pinnately cut or 

 divided, the ultimate lobes sometimes irregular and un- 

 equal but usually ovate to lanceolate: fls. greenish, 8 

 lines across, many with the sterile pedicels purplish: 

 berry nearly globular, 1 in. through. Afr., India and 

 Australia. L.B.C. 7:692. B.M. 7299; 7300. -According 

 to Von Mueller's Select Extra-tropical Plants, the Fiji 

 Arrowroot is prepared from the tubers of this species. 

 The plant thrives even on the sand-shores of tropical 

 countries, and it is not unlikely that it will endure a 

 temperate climate. 



AA. Lfs. not lobed. 



cristata, Jack. (Atdecia cristata, Kunth). Rootstock 

 a short conic caudex, marked with leaf-scars: Ivs. 1-2 ft. 

 long, oblong, acuminate, dark purplish green: scape 

 longer than the Ivs.: fls. dark purple, 1)^ in. across, in 

 a somewhat one-sided umbel, with numerous pale sterile 

 pedicels 8-10 in. long: involucral bracts 4, conspicuous, 

 the 2 inner elliptical, narrowed to a petiole, the 2 outer 

 revolute. Malaya. B.M. 4589. F.S. 9:860, 861. Gn. 45, 

 p. 415; 49, p. 423. It requires, according to Gn. 45, p. 

 415, a good, rich, open soil, with ample drainage, plenty 

 of water, and a stove temperature. During the winter 

 season the plant should be kept in a state of partial rest. 



F. W. BARCLAY. 



T AC SON I A (from the Peruvian name of one of the 

 species). Passifloraceoe. From Passiflora, Tacsonia 

 differs in having a long-tubular calyx, styles 3, stamens 

 and petals 3 or 5, the latter never wanting, corona of 

 tubercles or very short threads, and in a short reflexed 

 crown near the base of the flower-tube. However, the 

 line of demarcation between the two genera is often not 

 well marked and Harms (Engler & Prantl's "Pflanzen- 

 familien") unites Tacsonia with Passiflora. Masters 

 accepts (Trans. Linn. Soc. 27) 25 species of true Tac- 

 sonia, relegating the intermediate forms largely to Pas- 

 siflora. Other species have been discovered subse- 

 quently, making the total number in the genus above 

 30. The species are all South American, inhabiting the 

 Andes. They are tendril-climbing shrubs or herbs, re- 

 quiring the treatment given Passifloras. Tacsonias are 

 cultivated freely in the open in middle and northern 

 California. 



(1764) 



