210 VAUGHAN MacCAUGHEY 



white or crimson and are united at the base. The calyx is cup- 

 shaped, truncate. The calyx-hmb is short and scarcely toothed. 

 The corolla-tube is short or long, funnel-form, salver-form, or 

 campanulate; lobes 4 to 7; coriaceous, valvate in the bud. 

 Stamens 4 to 7, usually 5, the filaments adnate to the throat of 

 the corolla. Anthers enclosed in the tube or rarely exerted. 

 Ovary 2-loculed, or by the prolongation of the placantas spuriously 

 4-loculed. One erect ovule in each locule. The styles are united, 

 exerted, bifid or entire. The fruit is an aggregate of the succu- 

 lent, coalescing drupes, forming a syncarpium. The pyrense or 

 putamen are cartilaginous. The seeds are obovoid or reniform, 

 with a thin testa. The albumen is fleshy. The embryo is terete, 

 with inferior radicle. 



Morinda is represented in the Hawaiian flora by two species 

 only, M. citrifolia and M. trimera. The former is an abundant 

 and well-known dye tree of India, Malaya, and the Pacific islands. 

 It has been carried by the Polynesians throughout their vast 

 migrations across the Pacific, and undoubtedly in this way 

 reached the Hawaiian Archipelago. Numerous economic plants 

 were thus introduced by the primitive Hawaiians, and were 

 planted extensively in their new island home. Prominent among 

 these may be mentioned: Colocasia esculenta, Ipomoea batatas, 

 Musa sapientum, Artocarpus incisa, Cocos nucifera, Dioscorea 

 spp., Tacca pinnatifida, Jambosa Malaccensis, Piper methysticum, 

 Zingiber Zerwnhet, Broussonettia papyrifera, etc. 



Morinda citrifolia Linn, is called Noni by the Hawaiians; this 

 is also its Tahitian name. It ranges from Afiica and southern 

 India to Malaya, Australia, and the islands of the Pacific. The 

 Hawaiian group constitute the northern limit of its range in the 

 Pacific. Its geographical distribution coincides with that of 

 many other plants that were valued by the primitive Polynesians, 

 and clearly marks the eastward migrations of these peoples. It 

 is a small, glabrous tree, 20 to 30 feet high. It sometimes grows 

 as a large shrub, branching from the ground. The bark is smooth 

 and gray. The wood is bright yellow when first cut. It is very 

 durable, and resists the attacks of boring insects. It weighs 

 30 to 40 pounds per cubic foot. The branches are obtusely 

 4-angled. 



