TAMARIX 



TAXGELO 



3309 



petals deciduous, much longer than sepals; disk 5- 

 lobed. Aug., Sept., R.H. 1894:352. 



T. africana, Poir. Allied to T. juniperina. Racemes 2-3 in. long: 

 fls. very short -pedicelled: styles slenderer. Medit. region. Appar- 

 ently not in cult. ; the plant offered in trade under this name is usu- 

 ally T. parviflora. T. algerica or T. algeriensis, Hort., is probably 

 T. gallica: no species has been described under these names. The 

 Algerian species are: T. gallica. Linn., T. brachystylis. Gay, T. 

 bounopaea. Gay, T. africana, Poir., T. Balansse, Gay, T. rubella, 

 Battand., T. pauciovulata. Gay. and T. articulata, Vahl. T. an- 

 glica, Webb. Allied to T. gallica. Shrub, to 10 ft.: Ivs. bluish 

 green, somewhat constricted at the base: fls. ovate in bud; fila- 

 ments filiform at the base, attached to the acute lobes of the 

 5-angled disk. W. Eu. S.E.B. 2:261. T. articulata, Vahl. Tree, 

 attaining 30 ft., with slender, jointed branches: Ivs. glaucous, 

 minute, sheathing: fls. o-iaerous, pink, sessile, in terminal panicles. 

 W. Asia. Not hardy X. T. dahurica, Willd.=Myricaria dahurica. 

 T. germdnica, Linn.=Myricaria gennanica. T. rubella, Bat- 

 tand. Allied to T. parviftora. Tree or shrub with red erect 

 branches: Ivs. minute, imbricate: bracts ovate, acute, almost as 

 long as calyx; calyx-segms. 4; petals 4, rose; stamens 4, with long 

 filaments and dark purple anthers. Algeria, 



ALFRED REHDER. 



TAMONEA (native name). Melastomacese. This 

 name was revived to cover the names Cyanophyllum, 

 Miconia. and others (Krasser, in Engler & Prantl, 

 Die Xatttrlichen Pflanzenfamilien, III. 7. 1898), but 

 later (Xachtr. 1, p. 267) the name Miconia was 

 restored. Miconia is also retained in the list of "nomina 

 conservanda" of the International (Vienna) Congress. 

 Our cross-reference from Cyanophyllum to Tamonea, 

 therefore (Vol. II, p. 930), should be to Miconia. There 

 is apparently only one plant commonly known in cult, 

 as Cyanophyllum, and this is accounted for as Miconia 

 magnified on p. 2047, Vol. IV; and others are there 

 described. Under these dispositions, therefore, the 

 name Cyanophyllum is dropped. 



TAMUS (the old Latin name used by Pliny). Also 

 spelled Tamnus. Dioscoreacese. Herbaceous perennials 

 from a tuberous root: st. annual, twining: Ivs. alternate, 

 cordate, entire or 3-lobed: infl. axillary racemes; male 

 often elongated, lax, with the fls. solitary along the 

 rachis or disposed in lax few-fld. racemelets or cymules; 

 female very short, few-fld., sometimes reduced to a 

 sessile fascicle ; fls. dioecious ; male perianth urn-shaped- 

 campanulate, deeply 5-cleft; stamens 6; female peri- 

 anth-segms. 6, small, narrow, distinct; staminodes 

 minute or none; ovary 3-celled: berry subglobose, suc- 

 culent, indehiscent. About 2 species, 1 from Canary 

 Isls.. the other from Eu., N. Afr., and Temp. Asia. T. 

 commit nis, Linn. BLACK BRYONY. Rootstock ovoid, 

 black, fleshy: st. very long, twining, branched: Ivs. 2-3 

 in. long, ovate-cordate, acuminate, obscurely laterally 

 lobed: fls. yellowish green, small: berry red. May, June. 

 Eu., X. Afr., and Temp. Asia. 



TANACETUM (name of doubtful derivation). Com- 

 posite?. Annual or perennial herbs which are odorous: 

 lys. alternate, variously cut : heads of small to medium- 

 sized yellow fls. disposed in corymbs, or rarely solitary, 

 heterogamous, disk-shaped; female fls. with 3-5- 

 toothed, tubular corollas: achenes 5-ribbed or 3-5- 

 angular. with a broad truncate summit, bearing a 

 coroniform pappus or none. Thirty-five species scat- 

 tered about the northern hemisphere, of which about 

 7 are native to X. Amer. For cult., see Tansy. 



vulgare. Linn. (Chrysanthemum vuLgare, Bernh.). 

 TAXSY. Fig. 3770. St. robust, erect, 2-3 ft,, leafy to 

 the summit: Ivs. pinna tely divided into linear-lanceo- 

 late segms. which are serrate or pinnately cut: fl.- 

 heads J^-^in. across, numerous, in a dense flat- 

 topped cyme. July-Sept. Eu. Adventive in the U. 

 S. Var. crispum, DC., has the Ivs. more cut and 

 crisped. 



T. adenanthum, Diels. Plant densely tufted, 6-12 in. high: lys. 

 finely divided, clothed with white silky hairs: fl.-heads about Jiin. 

 across. W. China. T. quercifAlium, W. W. Smith. Lower Ivs. 

 4-6 in. long: fl.-heads containing about 20 yellow florets. Yunnan. 



F. W. BARCLAY. 



TANAKSA (named in honor of M. Tanaka). Saxi- 

 fragraceae. Herb probably hardy and perennial: plant 

 dioecious, perhaps sometimes monoecious, stolonif- 

 erous; stolons slender, leafy and rooting: Ivs. basal, 

 long-petioled, thick or somewhat fleshy, finally leathery, 

 including the petioles 48 in. long; blade oblong-lanceo- 

 late or ovate-lanceolate, rounded or somewhat cordate 

 at base, acute, doubly serrate: scapes very slender, 

 branched, pyramidal, 6-8 in. high: fls. very small, 

 greenish white, shortly pedicelled, solitary in the axils of 

 the bracts; sepals 5, almost free, oblong-lanceolate; 

 petals none; stamens 10, alternate ones shorter; ovary 

 glabrous, almost entirely free, 2-celled. One species, 

 Japan, T. radicans, Franch. & Sav. B.M. 7943. G. 

 35:373; 36:515. 



TANGELO (from tangerine and pummelo; by syn- 

 copation: tange[rine] [pumme]lo). A new group of cit- 

 rous fruits originated in 1897 by the writer by cross- 

 ing the Dancy tangerine with the Bowen grapefruit. 



3770. Tansy. Tanacetum 

 vulgare. (X>s> 



The resulting hybrid, named Sampson tangelo by H. 

 J. Webber and the writer (United States Depart- 

 ment of Agriculture Yearbook, 1904) does not closely 

 resemble either parent in its fruit characters, being a 

 slightly pear-shaped thin-skinned smooth and shi- 

 ning fruit of medium to large size, pale orange in color, 

 and with a rather acid sprightly flavored very soft 

 and juicy orange-colored pulp. It ripens very late, 

 several months after it begins to color, and sometimes 

 becomes partly dry before complete maturity. When 

 properly grown it is a delicious fruit. It is being grown 

 commercially on a small scale, but its delicate kin and 

 liability to dry out before fully ripe probably will 

 preclude its culture except by experts for a special 

 market. 



The Thornton is another tangelo, a hybrid of tan- 

 gerine with a Florida grapefruit. It is a rough thick- 

 skinned round fruit with very pale orange-colored 

 juice and sprightly flavored pulp. It ripens earlier 

 than the Sampson tangelo and is less acid. It is very 

 like a tender good-flavored orange in character. It is 

 beginning to be grown commercially on a small scale. 



The success of the first two tangelos produced by 

 artificial hvbridization has led to the creation of hun- 



