FLORA OF THE HAWAIIAN ISLANDS. 245 



horseshoe-shaped. Embryo curved, with a long radicle and short 

 cotyledons. — Trees or shrubs. Leaves opposite. Mowers solitary 

 or few together, on axillary peduncles. 



The genus is exclusively American, tlie following species being naturalized in the Old 

 World. 



1. P. GtVKJXVX Linn. {Enum. No. 136.) A tree, pubescent on the 

 young branches. Leaves on very short petioles, ovate or oblong, 

 usually acute, 3' -4' long, lJ'-2' wide, glabrous or nearly so above, 

 softly pubescent beneath, with the principal veins very prominent. 

 Peduncles axillary, ^'-1' long, 1-8-flowered. Buds ovoid in the 

 adnate part; the free part also ovoid, but much larger and more or 

 less acuminate or pointed, puberulent or tomentose. Petals broad, 

 fully h' in diameter. Stamens numerous, but not especially long. 

 Pruit globular or pear-shaped, known as G-uajava or Guava. 



Very abundantly introduced and naturalized in many places. 



3. EUGENIA Linn. 



The globose, or more or less elongated calj'x-tube scarcely or 

 somewhat produced beyond the ovary ; the limb 4 or rarely 5-toothed. 

 Petals 4, rarely 5, or more, or none, distinct and spreading, or more 

 or less adnate. Stamens indefinitely numerous, in many series, free, 

 or their bases united in (usually 4) phalanges. Ovary 2- or rarely 3- 

 celled ; style filiform, with a small stigma. Ovules indefinite, or very 

 rarely 2-4. Berry somewhat drupaceous or pulpy, rarely nearly diy 

 and fibrous, crowned by the persistent limb of the calyx. Seeds few, 

 usually 1-4, with a firm but thin testa. Embryo very thick; radicle 

 short. — Trees or shrubs, usually glabrous. Flowers variously ar- 

 ranged, fascicled in the axils or on short racemes, or in dense terminal 

 cymes, or terminal or lateral panicles. Bracts and bi'actlets usually 

 small and very caducous, rarely large and persistent. 



Jambosa: Flowers large; calyx-lobes large. Petals remaining 

 when the flower opens. 



Syzygium : Flowers small ; calyx-lobes very short. Petals more 

 or less united in a calyptra, and falling ofi" as soon as the flower opens. 



A very large genus, found principally in tropical South America and tropical Asia. 



1. E. (Jambosa) Malaccensis Linn. (Enum. No. 135.) A large 

 tree, 40° high, glabrous throughout. Leaves ovate-lanceolate or 

 oblong, coriaceous, obtuse or shortly pointed, abruptly tapering into 

 a petiole 4" -5" long. Peduncles axillary, often on the naked stems 

 far below the leaves (perhaps adventitious) about 1' long, beai-ing a 

 few large pink or crimson or sometimes pure white flowers on short 

 (3"- 4" long) pedicels. Calyx-lobes broad and rounded, 1" long. 

 Petals roundish, entire, or slightly eroso-crenate, 2" - 3" long. Sta- 



