1848 



TREES 



through palms, eucalypti and acacias, among which 

 there is plenty of room for personal preference. 



Lawn and Shade Trees; Araucaria excelsa, Nor- 

 folk Island Pine; Araucaria Bidwillii, The Bunya- 

 Bunya ; Jacaranda ovalifolia ; Cinnantomum Catn- 

 phora, Camphor Tree; Ficns macrophylla, Rubber 

 Tree; Ficus elastica {where hardy}, Rubber Tree; 

 Sterculia acerifolia, Australian Flame Tree; Magnolia 

 tcetida, Bull Bay; Sequoia gigantea, California Big 

 Tree; Cedrus Deodara, Deodar. 



The above list contains ten of the best ornamental 

 trees. It might be extended indefinitely if all our good 

 trees were included. The ornamental eucalypti and 

 acacias would at least treble this list, and the palms 

 alone would easily double it. Ernest Braunton. 



TREE TOMATO. See Cyphomandra. 



TREFOIL. See Clover, Tritolinm. 



TREVESIA (after the family Treves di Bonfigli of 

 Padua, patrons of botany). Araliacece. About9species 

 of small trees or shrubs from tropical Asia and the 

 islands in that region, with large lvs. either palmately 

 cut and simple or digitately or pinnate compound, and 

 flowers which are rather large for the family and borne 

 in panicled umbels: petals 8-12, valvate, somewhat 

 thick; stamens 8-12: ovary 8-12-loculed : fruit large, 

 ovoid. Greenhouse subject. 



pal mat a. Vis. (Gastbnia palmdta, Roxb.). A small 

 tree, with the ends of the branches sparingly prickly 

 and the young parts tomentose: lvs. crowded at the 

 ends of the branches, 1-1% ft. across, palmately 5-9- 

 lobed to below the middle; petioles 1-114 ft. long: 

 panicles long-peduncled: umbels 6 in. through, long- 

 peduncled: fls. 1 in. across, greenish white. Himalayas. 

 B-M. 7008. P . w . Barclay. 



TRlANEA Bogotensis, Karst., is Limnobium Bogo- 

 teneis, Benth. & Hook. See Vol. II, page 925. Also 

 G.C. II. 15:407. 



TRIARTEA. Error in a nursery catalogue. See 

 Iriartea . 



TRICAI/fSIA (Greek, triple calyx; true of some spe- 

 cies). Bubidee<e. Here belong the two shrubs from 

 Natal which are cult, in S. Fla. under the name of 

 Kraussia. When Kraussia was written for this Cyclo- 

 pedia the undersigned treated it in the manner sug- 

 gested by Bentham and Hooker, Index Kewensis and 

 Flora Capensis. Since then the writer has had access 

 to the Flora of Tropical Africa, which throws a new 

 light on the relationship of these plants. In Vol. 3 of 

 that work Kraussia is made a section of Tricalysia 

 characterized by having the calyx -limb 4-0-lobed; the 

 other species have a truncate calyx-limb which is entire 

 or nearty so. Tricalysia is a genus of erect or climbing 

 shrubs, with small axillary flowers. It contains a few 

 species from Natal and Madagascar in addition to 21 

 from tropical Africa. The two species mentioned be- 

 low have funnel-shaped fls. which are about a quarter 

 of an inch long. Their color is not stated; it is prob- 

 ably white. The fls. are borne in clusters, which are 

 much shorter than the leaves. It is not clear why these 

 plants should be cultivated at all. They bloom in S. 

 Calif., but have not bloomed in S. Fla, 



Generic characters of Tricalysia: calyx-tube in many 

 species girt at the base with a single or double epi- 

 calyx of involucral bracts: corolla funnel-shaped or 

 shortly salver- shaped; throat bearded or glabrous; 

 lobes 4-8; stamens 4-8, inserted at the mouth of tho 

 corolla ; ovary 2-loculed, rarely 3-Ioculed. Kraussia 

 lanceolata is here removed to Tricalysia and Hiern is 

 cited as the author of the combination Tricalysia lan- 

 ceolata, though the combination has probably never 

 been formally made previous to this occasion. 

 A. Lvs. lanceolate, acuminate. 



lanceolata, Hiern {Kraussia lanceolata, Sond.). 

 Shrub: lvs. lanceolate, acuminate: cymes mauy-fld.: 

 calyx 5 -toothed: throat of corolla densely bearded: 

 stigma deeply 2-lobed, lobes revolute: fr. globose, the 

 size of a pea. Natal. 



TRICHOL^NA 



aa. Lvs. elliptic, obtuse. 

 Sonderiana, Hiern (Kraussia coriacea, Sond.), 

 Shrub : lvs. elliptical, obtuse or minutely apiculate, 

 wedge-shaped at the base, coriaceous, l l A-'i% in. long: 

 cymes about 4-fld.; fls. pentamerous; pedicels %-% 

 in. long ; throat densely bearded; stigmas deeply 2- 

 lobed, lobes revolute. Natal. ^r Jj, 



TRfCHARIS. A section of Dipcadi. 



TRICHlNIUM (Greek, hairy; alluding either to the 



plant in general or to the fl. -heads). Amaraniacem. A 

 genus of 47 species of Australian herbs or shrubs, often 

 hairy, witii alternate narrow or rarely obovate leaves 

 and pink or straw-colored flowers in terminal simple 

 spikes or heads, with shining scarious bracts. Perianth- 

 tube short; segments 5, equal, linear, rigid, usually 

 flumose; stamens 5, but usually 1-3 of them small and 

 antherless: fr. an indehiscent utricle. 



exaltatum, Benth. (Ptilbtus exaltatus, Nees). A ten- 

 der perennial, 2-3 ft. high, erect, usually branching 

 above : lower lvs. 2-5 in. long, oblong-lanceolate rather 

 thick, contracted intoa longpetiole; upper lvs. smaller: 

 spikes erect, long-peduncled, at first ovoid-conical, be- 

 coming longer: perianth '% in. or less long, yellowish, 

 with dull red tips. B.R. 25:28 (as T. alopecuroides).— 

 Lately introduced in this country as a greenhouse sub- 

 ject. 



T. M&nglesii, Lindl., is perhaps the choicest species. It has 

 violet-purple tis. in large pyramidal heads 3 in. long and 2 in. 

 wide at base. It could probably be grown as a summer annual. 

 B.M. 6448. F.S. 23:2396. R.H. 1866:291. F. 1864:217. I.H. 

 13:464. G.C. 1864:555. F- w . Barclay. 



TRICHLORIS (Greek for three and green). Grami- 

 ne03. Under the name of Ghlordpsis, or Chloridopsis, 

 Blanchardiana, seedsmen offer a tender perennial 

 ornamental grass, growing 1-2 1 ., ft. high and useful for 

 edgings. Its proper name is Trichloris Blanchardiana, 

 Hackel. It comes from Argentina. There are four 

 other species of Trichloris, 2 from Chile and 2 from the 

 southwestern U. S. There are no such recognized ge- 

 neric names as Chloropsis and Chloridopsis. Trichloiis 

 has the flowers arranged in long rather slender mostly 

 erect spikes which are umbellate or panicled: spike- 

 lets 1-3-fld., the sterile bracts produced into prominent 

 awns. T. Blanchardiana is a useful grass, its umbel- 

 like clusters of soft - awned silvery spikes being very 

 pleasing. It is readily grown from seeds. l jj g 



TRICHOCENTRUM (Greek, hair and slender; allud- 

 ing to the long, slender spur). Orchidaceos, A small 

 genus allied to Rodriguezia (Burlingtonia). The plants 

 grow in dense matted tufts. Pseudobulbs very small, 

 each bearing a broad, fleshy leaf. Inflorescence a few- 

 fld. raceme on which usually only one (lower opens at 

 a time: sepals and petals free, spreading; labellum 

 larger, spurred, with 2 lateral lobes and a 2-parted mid- 

 dle lobe; column short: pollinia 2, on a wedge-shaped 

 stipe. Sixteen species. Epiphytes of dwarf stature, 

 growing best on blocks ; free-flowering ; they suffer 

 from too much water at the root; give them a warm- 

 house temperature. Prop, by division. 



albo-purpureum, Reichb. f. Lvs. oblong-lanceolate, 

 3 in. long, tufted: fls. on short peduncles, 2 in. across; 

 sepals and petals obovate-lanceolate, inside maroon- 

 brown, with greenish tips, outside greenish; labellum 

 subquadrate, white, with a large purple spot on each of 

 the lateral lobes. Brazil. B.M. 5688. A.F. 6:609. 



tigrinum, Lindl. and Reichb. f. Similar in habit to 

 the preceding: lvs. oblong, obtuse, speckled with red: 

 fls. pendulous, nearly 3 in. across; sepals and petals 

 broadly linear, yellow, speckled with red; labellum 

 cuneate-obovate, emarginate, white, rose toward the 

 disk. May. Cent. Amer. B.M. 7380. I.H. 24:282. 



Heinrich Hasselbring. 



TRICHOl/ffiNA (Greek, trichos, hair, chlaina, or in 

 Latin, hrna, a mantle; referring to the covering of 

 silky hairs on the spikelets). GramineiT. A genus of 

 10 African species, one of which is cultivated for the 

 ornamental inflorescence, which is used in making dry 

 bouquets. Spikelets in loose panicles, very silky hairy, 



