AN ENCYCLOPAEDIA OF HORTICULTURE. 



467 



Dichorisandra continued. 



drier, bat must not be exposed to cold. Propagated by 

 divisions, by cuttings, or by seeds. Besides the species 

 described below, about seven or eight others are be- 

 lieved to have been introduced. 



D. albo-marglnata (silvery-margined). fl~ in a dense raceme, 

 gin, long ; sepals white, blue, and puberulous outside ; petals 

 larger, rhomboid-ovate, blue, the lower part white. L lanceolate, 

 acuminate. Stem erect, glabrous, simple or branched above. 

 h. 2ft. to 3ft. Brazil, 1868. (R. O. 568.) 



D leucophthalmns (white-eyed).* JL often three together, 

 each on a branch of the peduncle, large ; peduncle or scape 

 emerging from a joint at or near the base of the stem, pros- 

 tratef glabrous, flexuous, panicled, here and there sheathed with 

 brown scales; bracts from a broad base, subulate, herbaceous; 



sepals oblong, concave, spreading, between herbaceous and 

 scariose; petals four times as large as the sepals, broadly 

 obovate, spreading, blue-purple, white in the lower half; 

 anthers bright yellow. June. L 4in. to 6in. long, elliptic-lanceo- 

 late sharply acuminated, moderately attenuated below, till tney 

 form the sheath ; striated, patent and often recurved. Steins 

 two or three together, erect, terete, jointed, 9in. or more high, 

 glabrous. A. If t to lift Brazil (B. M. 4733.) 



D. TTiTiff^ <rLa - (mosaic).* JL bright azure-blue, disposed in a terminal 

 jpiie or truss. Autumn. I. ovate, acute, dark green above, pro- 

 fusely pencilled and veined with zigzag transverse lines of pure 

 white ; under side deep reddish-purple. Stems terete, chequered, 

 surrounded at the nodes by close brownish sheaths. *. 14ft- 

 Maynas, 1866. (F. d. S. 1711-2.) 



D. oxypetala (sharp-petaled). JL, corolla of three reddish 



Hsnsfts&swrausg^^ ss 



Sn^Selowest one long, deflexed; pedicels and flowers with 

 S' brown ovate bracts ? calyx of three ovate, acute, Dreading, 

 reddish-purple veined petals, with a white spot at the base 



- , 



thers linear-oblong, whitish at the base. August ^eo^ 1 

 to the upper part of the stem, alternate, elliptical attenuated^ 

 both at the base and at the extremity, entire, striated, the skks 

 rSu. incurved, very glabrous, except a little pubescence at the 

 base, on the under side. Stem oblique, simple, or forked, *. 2ft 

 1810. (B. M. 272L) 



Braril, 1830. (B. M. 

 l (SanndersO. JL Jin. in diameter, crowded in a 



devoalrnost capitate panicle, 2in. long ; ; Pdicel Try 

 short, glabrous ; sepals oblong, obtuse, concave, glabrous w 



' 



which is white. July. J. numerous, 





late, in l 

 cordate. 



DICHROTBJCHTJM (from dichroot, baying two 



ours, and thru, hair; in reference to the tofts of hair 



the end of each seed, in the original species, being 



ifferently coloured). OBD. Gemeracecc. A small genus of 



lowy stove perennials, with habit of, and requiring treat- 



ent similar to, J3*ch.ynan tb.ua (which tee). Probably 



e only one in culthration is that here described. . 



(ternate).* JL crimson-red, tabular, sub-umbel- 

 in loose cymes. July. J. unequal, opposite ; the large one 



ite. Moluccas, 1872. (B. H. 1871, 22.) 



DICKSONIA (named after James Dickson, a famous 

 ritish cryptogamic botanist). Including Baltmtiwn, 

 botium, Dennstacdtia, Patania, Sitolobium. OBD. Kticet. 

 genus of about forty species of stove and greenhouse 

 eras, the majority being natives of tropical America and 

 olynesia. Fronds mostly large, decompound, coriaceous, 

 nvolncre inferior, sub-globose, coriaceous or membrana- 

 eous, cup-shaped, and entire or more or less distinctly 

 two-valved. Sori placed at the apex of a rein, intra- 

 arginal. A compost of light, fibrous loam and peat, in 

 equal parts, with about one-third sand, is most suitable, 

 tar general culture, see Ferns. 



purplish-green, with two silvery tripes. 

 BrariTiOTi. * 



DICHOSMA. 8 Agathosma. 



DICHOTOMOUS. Divided in twos; stems con 

 tinually dividing into double ramifications. 



DICHE-OSTACHYS (from dichm, two-coloured, an 

 gtachyt a spike ; in allusion to the lower flowers of eacl 

 spike differing in colour from those above). OBD. Leg* 

 mino<B A small genus of four or five species of ngi 

 stove shrubs, extending over tropical Africa and Asi 

 one being confined to Australia. Flowers, upper on 

 yellow, hermaphrodite; lower ones either whr te, puik 

 or purple, neuter. Leaves bipinnate ; leaflets usuaU 

 small The under-mentioned is probably the only on 

 yet in cultivation. For culture, see Mimosa. 



linear, cut 



boidal, blunt, with two to lour 

 tori t-ro to eight to a segment 

 (H. S. F. i. 26 B.) 

 D. antarctic* (Antarctic).* m.. 30ft to 36ft high^ ^ 



West Indies, 1828. Stove. 



Ifosy.rhomted.ripirmate, ft to . o 

 2ft to fit broad in centre ; central pinwe 1ft to lift long, 4m. 

 to 5in. broad; pinnules sessile, linear, Jin. broad ; segments 



inear, Jin 

 segment 



1786. Arborescent 



oblong, tori six to ten to lowest : 

 Greenhouse. 



D. arborescens (tree-like). eau. 10ft high, fnmdt bipinnate ; 

 lower pinnae 1ft to lift long, 6in. to 9in- broad ; pinnules linear, 

 deeplv cut segments jin. long, oblong, tori two to BIX to a lobe, 

 S/riobostst Helena, 1824. Arborescent Greenhouse. 

 (H. S. F. L 22i.) 



D. assamicum (Assam). A synonym of D. Barometz. 



D. Barometz (Barometi). /rondt tripinnate ; lower pinrwe ovate- 

 tooSStoV 1ft to 2ft broad; pinnule, linear - acuminate, cut, 

 nearly to the rachis; segments taear-oblongaj^te, sub-falcate. 

 tori two to twelve to a lobe. Assam, China, 1824. Arborescent 

 Greenhouse. ST>. D. attamieum. (H. S. F. i. 29 B.) 



D. 



Juan Fernandez, 1880. Arborescent Gi 

 "orevious Ipage, Fig. 656, for which we are indebted to 

 MessrTSh^Sonl (IL S. F. L 23 A.) 



^ffiSSate (( S U ri5t io^^^broadT'innu^ 

 Sn^icuSnate, cut down to the rachis below ; segments oblong, 

 bluntish. wrTtwo to twelve to a lobe. Sandwich Islands, 

 18Mb Stove. 



frond* bipinnate ; lower j 



coat of 



y contracted ; main rcui BMBM "- - Vimf 

 "yellowish-brown hairs at the base. Java, 1875. 



(Cirata-likeX rto. eweoing., /* ?J^?^ ; 

 Tft to lift long. fan. broad ; pinnules anear- 



ft to i ong - 



deep'ly ten ob.ong.deltoi deeply tad... 

 Dinnatifld. tori two to twelve to a segment West Indies. Stove. 



hairs. 



