148 
RUBIACEJE. 
14. PYKOSTRIA, Comm. 
Flowers polygamous. Calyx-tube campanulate ; teeth 4-5, deltoid. 
Corolla hypocrateriform ; lobes 4-5, thick, lanceolate, valvate, nearly as 
long as the tube. Stamens 4-5 ; anthers nearly sessile at the villose 
throat of the corolla, included. Ovary 4-10-celled ; style filiform ; 
stigma capitate, with 2-6 lobes. Fruit a drupe, with 4-10 pyrenes. — 
Shrubs, with flowers solitary or fascicled in the axils of the leaves, 
subtended by a pair of small coriaceous persistent bracts. Distrib. 
Confined to the Mascaren Isles. Species 6. 
Stigma with many lobes. Bracts larger, lanceolate . . 1. P. maorophylla. 
Stigma with two lobes. Bracts minute, deltoid. 
Leaves and flowers distinctly stalked 2. P. polymorpha. 
Leaves and flowers subsessile 3. P. fasciculata. 
1. P. macrophylla, A. Rich.; DC. Prod. iv. 464. A branched 
shrub, with stems clothed with ferruginous pubescence. Leaves 
nearly sessile, broad-oblong, obtuse or subacute, broadly rounded 
or rather cordate at the base, 3-4 in. long, 2-3 in. broad, sub- 
coriaceous. Flowers solitary in the axils of the leaves, subtended by 
coriaceous lanceolate persistent bracts -J- in. long. Calyx ^ in. long ; 
teeth distinct, deltoid. Corolla three times as long as the calyx ; lobes 
lanceolate. Stigma capitate, with several minute distinct lobes. Cells 
of ovary 8-10. Fruit not seen. P. cordifolia and orbicularis, A. Rich. ; 
DC. loc. cit. 
Mauritius, in the forests of Flacq, Nouvelle Decouverte, eto. Also Bourbon. 
2. P. polymorpha, A. Rich. ; DC. Prod. iv. 464. A much- 
branched glabrous shrub, 8-12 feet high, with slender angular branch- 
lets. Leaves distinctly petioled, obovate or oblong, obtuse, rounded at 
the base, 1J-2 in. long, subcoriaceous ; stipules small, deltoid. Flowers 
solitary or in pairs, on short distinct axillary peduncles, subtended by 
a pair of very minute deltoid bracts. Calyx T X T in. long ; teeth minute, 
deltoid. Corolla -f in. long, whitish ; lobes 4, lanceolate nearly as long 
as the cylindrical tube. Ovary 4-celled ; stigma capitate, two-lobed. 
Fruit turbinate, with 8 ribs and 4 pyrenes. 
Mauritius, on the Pouce and Montagne Longue. Endemic. 
3. P. fasciculata, Rojer in Kerb. Kew. A much-branched shrub, 
with ultimate branchlets clothed with a little ferruginous pubescence. 
Leaves nearly sessile, obovate-oblong, rather oblique at the base, obtuse, 
2-3 in. long, subcoriaceous, shining. Flowers solitary or several sub- 
sessile in the axils of the leaves, subtended by a pair of minute 
coriaceous persistent deltoid bracts. Calyx campanulate, T V in. long ; 
teeth 4, deltoid. Corolla i in. long ; lobes lanceolate, nearly as long 
as the funnel-shaped tube. Stigma distinctly two-lobed. Mature drupe 
If in. long, narrowed to both ends, with 10 riba and 5 woody pyrenes. 
Mauritius, in the forests of the centre of the island and the Savanne range. 
This may be P, oleoides , Bojer, Hort. Maur. 170, but differs from the Bourbon 
