278 XLV. RUBIACE^E. [Morinda. 



Roxb. Fl. Ind. i. 541-546, describes 4 species closely allied to this, which are 

 important, as the root of all is used for dyeing. 1. M. citrifolia, Linn., from 

 Pegu, with glabrous, lucid leaves. 2. M. tinctoria, Roxb., cultivated throughout 

 India, with glabrous, but not lucid leaves. 3. M. bracteata, Roxb. ; Wight 111. 

 t. 126, from Ganjam, glabrous, flower-heads supported by a few linear-lanceolate 

 bracts, adnate to the calyx-tubes of outer flowers. 4. M. multifiora, from Nag- 

 pore and Berar, downy, peduncles often opposite, axillary, the end of the branch 

 forming a short panicle. These 4 species have the anthers not exserted, the 

 stipules are interpetiolar, free, or only connate at the base, not sheathing. I 

 am inclined, however, to think that the wild and cultivated plant cannot be 

 specifically distinguished, and that it will be more convenient to consider the 5 

 species described by Roxburgh as one, which would then be called M. citrifo- 

 lia, Linn. Beddome, Fl. Sylv. t. 220, unites M. citrifolia and tinctoria, and 

 Thwaites, Enum. PI. Ceyl. 145, points out that the presence of bracts and the 

 exserted anthers are variable characters. M. citrifolia, Linn., is found in Java 

 and other islands of the Indian Archipelago, in Queensland, on the Sandwich, 

 and other islands of the Pacific. When the dch is cultivated, it is generally 

 raised from seed, and dug up when a few years old, unless trees are wanted to 

 produce seed. A full account of its cultivation in As. Researches, iv. 35 (1799). 



Entirely distinct from this sp. are Morinda angustifolia, Roxb. 1. c. 549 ; 

 Cor. PL t. 237, from Bengal, Burma (cultivated in Toungyas as a dye), and Sin- 

 gapore, distinct drupes, and M. umbellata, Linn. Syn. M. scandens, Roxb. 1. 

 c. 548, a diffuse or climbing shrub common in Southern and Eastern India, with 

 4-8 umbellate terminal peduncles. 



H. HAMILTONIA, Roxb. 



Shrubs with opposite, petiolate, ovate-lanceolate penniveined leaves, 

 and short, intrapetiolar, broad, acute, persistent stipules. Flowers fascicu- 

 late, in large trichotomous panicles. Calyx-tube ovoid, limb 5-cleft, seg- 

 ments subulate, persistent. Corolla funnel-shaped ; tube long, lobes 5, 

 valvate. Stamens inserted in the mouth of the corolla, anthers attached 

 by the back to short, subulate filaments. Ovary 5-celled, with 5 furrows, 

 the dissepiments disappearing afterwards. Capsule 1 -celled, 5-seeded, 

 opening at the apex into 5 valves. Seeds triquetrous, testa of 2 layers, 

 the outer reticulate. Cotyledons foliaceous, cordate, induplicate, radicle 

 inferior. 



1. H. suaveolens, Roxb. Fl. Ind. i. 554. Syn. H. propinqua, Dne. 

 in Jacq. Voy. Bot. t. 91 ; Spermadictyon suaveolens, Roxb. Cor. PI. t. 

 236 \ S. azureum, Wall. Bot. Reg. t. 1235. Vern. Muskei, kantalu, 

 fisauni, Chenab ; Niggi, tulenni plml, gohinla, Ravi ; Kanera, puddri, 

 Bias ; Phillu, Sutlej ; Iogia padera, Kamaon. 



A shrub, with divaricate, more or less herbaceous branches. Leaves 

 elliptic-oblong, 6-9 in. long on short petioles, glabrous or pubescent, firm, 

 hard and rough, main lateral nerves 10-16 pair, arcuate, anastomosing 

 with intermediate more slender nerves. Branches of panicle pubescent. 

 Flowers sessile or shortly pedicellate, in compact fascicles, with subulate 

 bracts, white or blue, fragrant, calyx-segments linear or subulate, longer 

 than ovary, clothed all over with long hairs, and often in addition with a 

 few distant filiform gland-tipped teeth, or hairless, with glandular teeth, 

 or clothed with short pubescence only. Corolla-tube J in. long, pubes- 



