42li 



ASYSTASIA 



ATALANTIA 



o797. — A beautiful phmt, raroly soon, and thouplit, to 

 be dirticult to manage; but it sooms to Howor loailily 

 in fall in our oliniale, if rested during the previous 

 winter and brought on in the suiniuer. Prop, by cut- 

 tings of firm wood in spring or suinnK-r. Young plants 

 in small pot* often bloom well. 



.4. coromanddutiia, Neea {.\. coinorensb, Bojer. A. violacea, 

 Dale. Justicia gangctica, Linn.). Zigzag sub-shnib: Ivs. ovate- 

 cortiate. vc&vy: fls. purple, nearly sessile, in 0-10~fld. raceme. 

 India. B.M. 424S. P.M. 14:125. F.S. 2:179.— .4. scdndeiis, Lindl. 

 (Henfreya scandens, Lindl.). Climbing: Ivs. obovate to ovate, 

 thick, entire: fls. large, yellow, white and blush, in a thyrse. Afr, 

 B.M. 444y. B.R. 33:31. F.S. 3:23L L. H. B. 



ATACCIA: Tacm. 



ATALANTIA {Alalantia, one of the Hespcrides). 

 Rutaccie, tribe Cltreie. Woody plants, now receiving 

 attention in America as stocks for cit- 

 rus fruits, and as possible parents in 

 breeding new forms of such fruits. 



Small trees or shrubs, usually spiny, 

 with persistent coriaceous simple Ivs. 

 having prominent netted veins and 

 wingless or very narrowly winged 

 petioles jointed at base of If.: fls. u.su- 

 ally pcntamerous, with the stamens 

 free or united into a tube, twice as 

 numerous as the petals; ovary 3-5- 

 celled, with 1 or 2 ovules in each cell : 

 fr. hke a small orange with a lemori'? 

 like skin. In the typical species, the 

 pulp -vesicles fill the segms., but in 

 some dry-fruited species they are 

 rudimentary; these species constitute 

 the subgenus Rissoa. — Twelve or 15 

 species are known, ranging from India 

 through the Malayan peninsula to 

 Austral. 



432. 



Leaf of Atalantia 



citrioides. ( Xf) 



A. Subgenus Eualalantia. Cells of fr. 

 lined with pulp-vesicles. 



monophylla, DC. {Limbnia monophylla, Roxbg., not 

 Linn. J. A large shrub or .small tree, native to India, 

 Ceylon, Uurma, Siam and Indo-China, usually spiny: 

 Ivs. glabrous, or sometimes pubescent, 1-3 in. long; 

 petioles short, sUghtly or not at all winged: fls. borne in 

 axillary panicles; c;ilyx irregularly lobcd, split to the 

 base on one side; petals usually 4, stamens 8, the fila- 

 ments connate and forming a completely closed tube; 

 ovarj' .3-5-celled: fr. from 3 2~-4'n- diam., with a skin 

 hke a lime, globose, with several cells (generally i), each 

 usually containing 1 .seed and filled with pulp-vesicles, 

 making the fr. much like a miniature orange. India, 

 Ceylon, farther Indi,a. 111. Roxbg. PI. Corom., pi. 83. 

 Wight, Icones, pi. 1611. Engl, in Engl, and Prantl. 

 Nat. Planzenf. III. 4:191; fig. Ill, QD.— This tree, 

 still little known outside of India and Ceylon, is the 

 type of the genus Atalantia, and one of 

 the promising species for trial as a 

 stock on which to graft other citrus 

 frs., and also for use in breeding new 

 tj'pes of citrus frs. The frs. yield 

 an oil which in India is considered 

 a valuable apijlication in chronic 

 rheumatism. 



macrophylla, Kurz. (A. monophylla 

 var. Tn/icrophyll/i, Oliver). A small or 

 medium-sized tree, native to the Anda- 

 man Lsls. and Uurma, having ovate- 

 elliptical emarginate Ivs. 1)^-4 in. long and i-2'2 in. 

 broarl: fl.s. on short axillary racemes; calyx irregularly 

 lobed, sfjlit to the ba-w on one side as in yl . monophylla; 

 stamfm.s connate and forming a tube: fr. large, said to 

 reach 134-2 in. diam. Andaman lsls., Uurma, Malay 

 Penin.sula, Bangka I.sl. — Little known and is chiefly in- 

 teresting beeaii.se of the large size of its frs. Kurz, in his 

 "Forest Flora of Hritish Hurma," .says of this species: 



433. Cross- 

 section of ovary 

 of Atalantia 

 citrioides. (XlJ 



''Berries globose, the size of a wood-apple, glabrous," 

 and gives the size of the wood-apple as 1 } 2~2 in. 

 diam. A tree brought from the island of Bangka, east 

 of Sumatra, and now growing at the Botanical Gar- 

 tlens at Buitenzorg, Java, is considered by Hochreu- 

 tiner to belong 

 to this species. 

 It is of remark- 

 able size, being a 

 beautiful round- 

 topped tree 40 

 ft. high with a 

 deeply furrowed 

 trtmk (5 ft. in cir- 

 c u m f e r e n c e , 

 forking at 3 ft. 

 from the ground 

 and branching profusely at 

 6}2-l() ft. No other species of 

 Atalantia is known to reach 

 this size or to bear frs. so large. 

 This species is of unusual in- 

 terest for trial as a stock and 

 also for hybridizing with other 

 citrus frs. 



citrioides, Pierre. A small 

 tree native to Indo-China, usu- 

 ally spiny, having glabrous 

 emarginate oval Ivs. 2-33-2 in. 434. Atalantia ceylonica. 

 long (Fig. 4.32): calyx cup- (xja 



shaped, not split to the base; 



stamens connate, forming a tube; ovary usually 3- or 

 4-celled: fr. resembles a small orange about ?i'in. diam., 

 with a roughened glandular skin; cells filled with pulp- 

 vesicles and contain usually a single seed about ' gin. 

 long (Fig. 433). 111. H. Lecomte Fl. g6n. de I'lndo- 

 Chine, Vol. I, pi. 24, fig. C. 5, 6. — This interesting 

 species is native to Cochin China and Cambodia and 

 has recently been intro. into this country, where it will 

 be tested as a stock and for breeding purposes. Its close 

 reltitionship to Citrus is shown by the fact that it grows 

 well when grafted on grapefruit. 



racemSsa, Wight. A shrub or small tree, differing 

 from A. monophylla chiefly in having a regular calyx 

 not split down one side. S. India, Cevlon. 111. Hook. 

 J. bot. Vol. I, pi. 122: Wight, Icones, "pi. 71. 



AA. Subgenus, Rissoa, n. subg., named for A. Risso, b. 

 Nice, 1777, d. IS40, a well-known writer on citrus 

 frs. Rissoa, ArnoU, 1836 as a genus. Like Eu- 

 alalantia, but with dry frs., the cells being nearly 

 filled with 1 or 2 large seeds; pulp-vesicles rudi- 

 mentary and greatly reduced in number. 



ceylonica, Oliver (Rissoa ceylonica, Arn.). Fig. 434. 

 A much-branched spiny shrub or small tree native to 

 Ceylon and India: Ivs. lanceolate emarginate, l}^-3 in. 

 long: fls. borne in crowded cymes; calyx not spht on one 

 side; stamens free, alternate ones longer; ovary usually 

 2-celled with 2 ovules in each cell: frs. about 34-Jiin. 

 diam., dry, having only rudimentary pulp- vesicles; 

 containing from 2-4 very large rounded seeds. Ceylon. 

 — This species is of interest chiefly for trial as a stock, 

 since its large seeds would be likely to produce very 

 vigorous seedlings. The dry fr. renders it unpromising 

 for breeding purposes. The figure is from a specimen 

 grown at tlie Hope Garden, Jamaica. 



Guillauminii, Swingle. A small spiny tree, 10-13 ft. 

 high: young branches angular and pubescent: Ivs. oval, 

 more or less pointed at both ends, 2-4 in. long: fls. 

 unknown: frs. J^-1 in. diam., 3-celled, 2 large seeds 

 in each cell, pulp-vesicles rudimentary. Tonkin. 111. 

 Notulae systematica. H. Lecomte, Vol. II, p. 162, fig. 1. 

 — A little-known spticies, interesting on account of its 

 large frs. Because of its large seeds, it should yield 

 vigorous seedlings. 



