RUBIACEAE 45]^ 



10. COFFEA Linnaeus 



Shrubs or trees, with opposite leaves and broad stipules. Flowers white, 

 axillary, solitary, or in fascicles or cymes. Calyx-tube short, the limb 

 often persistent. Corolla-tube long^or short, the lobes 4 to 7, spreading. 

 Anthers as many as the corolla-lobes, sessile. Ovary 2-celled; style slen- 

 der; ovule's 1 in each cell. Fruit fleshy, with 2 plano-convex, coriaceous or 

 cartilaginous, 1-seeded pyrenes, the seeds concave or grooved ventrally. 

 (Latinization of the common name, said to be derived from the name 

 of a locality in Africa.) 



Species 40, in the tropics of the Old World, 2 introduced in the Phil- 

 ippines. 



* 1. C. AEABICA L. Cafe (Sp.) ; Coffee. 



A small tree reaching a height of 4 or 5 m, quite glabrous. Leaves 

 elliptic-ovate to elliptic-oblong, acuminate, base acute, shining, 8 to 15 

 cm long. Flowers white, in axillary fascicles, the corolla about 1.5 cm long. 

 Fruit red, ovoid or ellipsoid, about 1.4 cm long. (Fl. Filip, pi. SS.) 



Occasionally cultivated in our area, fl. most of the year; more or less 

 cultivated in all parts of the Philippines. A native of south-western Asia, 

 now cultivated in most tropical countries. 



11. IXORA Linnaeus 



Shrubs or- small trees, glabrous or nearly so, with opposite leaves. 

 Flowers 4-merous, white, pink, or red, few to many in terminal, trichotom- 

 ously branched cymes, usually 2-bracteolate. Calyx-tube ovoid, 4-toothed. 

 •Corolla-tube slender, cylindric, elongated, the lobes spreading, twisted in 

 bud. Stamens 4, alternate with the corolla-lobes. Ovary 2-cened; style 

 filiform, slightly exserted; ovules 1 in each cell. Fruit globose, somewhat 

 fleShy, with 2, 1-seeded, plano-convex, coriaceous pyrenes. (A name used 

 by Rheede, after Baldaeus, the flowers of one species being offered to 

 "the god Ixora'' (?Isvara) in Ceylon.) 



Species 125 or more, chiefly in tropical Africa and Asia, about 20 in 

 the Philippines. 



1. Caljrx-lobes longer than the calyx-tubes; flowers white.. 1. 7. finlaysoniana 

 1. Calyx-lobes shorter than the calyx- tubes; flowers pink or red. 



2. Flowers few in each cyme, about 1.5 cm long. 2. I. philippineneia 



2. Flowers very numerous, 2 to 2.6 cm long. 

 3. Leaves cordate or rounded at the base; calyx-teeth acute. 



3. 7. eoccinea 

 3. Leaves narrowed to the cuneate base; calyx-teeth obtuse. 



4. 7. chinensia 



•1. I. FINLAYSONIANA Wall. Santan-puti (Tag.). 



A glabrous shrub 2 to 4 m high. Leaves oblong to oblong-oblanceolate or 

 oblong-obovate, 10 to 17 cm long, 2.5 to 6 cm wide, base narrowed, cuneate, 

 apex blunt or blunt-acuminate. Cymes terminal, umbel-like, densely many- 

 flowered, 10 to 15 cm in diameter. Flowers fragrant. Calyx greenish, the 

 lobes about 5 mm long, nearly twice as long as the tube. Corolla white, 

 the tube slender, about 3 cm long, the lobes spreading, about 6 mm long. 



Cultivated for ornamental purposes, not spontaneous, fl. in all seasons. 

 Probably a native of Siam, now cutivated in many tropical countries. 



