189. ERICACEAE — I9O. MYRSINACEAF '417 



12. (6.) Stamens 4. Fruit few-seeded, loculicidal. . . . . . . . 13 



Stamens 8, very rarely 6, 7, 10, or 12. . . . . ; . .;-''.'. 14 



13. Calyx-lobes unequal, one of them somewhat larger than the others. Disc 



distinctly developed. Bracts and bracteoles none. — Species 6. Tropi- 

 cal and South Africa. . ' Ericinella Klotzsch 



Calyx-lobes equal. Disc rudimentary. Bracts and bracteoles 3. — Species 

 30. Tropical and South Africa. . . . . . . Blaeria L. 



14. Flowers with 4 bracts and bracteoles. Calyx corolla-like, 4-pärted neaily 



to the base, slightly exceeding the deeply 4-cleft corolla. Anthers 

 spurred, opening by longitudinal slits. Fruit dehiscing septicidally, 

 few-seeded. — Species i [C. vulgaris SaHsb., ling). North-west 

 Africa (Morocco and Azores). Yields tanning and dyeing materials, 



medicaments, and food for bees Calluna Salisb. 



Flowers with i — 3 bracts and bracteoles or without any. Fruit dehiscing 

 loculicidally, usually many-seeded . . . -i 15 



15. Calyx-lobes unequal, the lowest larger than the others. Bracts and 



bracteoles none. Disc rudimentary. Stigma broad. Flowers terminal- 

 ^— Species 45. Tropical and South Africa. Some are used medicinally. 



(Plate 120.) Philippia Klotzsch 



Calyx-lobes equal. Bracts and bracteoles nearly always present. Disc 

 " usually distinctly developed 16 



16. Calyx much longer than the corolla, two of the segments including the 



other two. Anthers opening by loculicidal slits. — Species i. South 

 Africa (Cape Colony). (Under Erica L.) . . . . Macnabia Benth. 

 Calyx not much longer, usually shorter than the corolla. — Species 480. 

 South Africa, East Africa to Comoro Islands, and North Africa. Many 

 species are used as ornamental plants, some yield wood or dyes. (In- 

 cluding Pentapera Klotzsch). " Heath." . . . .1 . Erica L. 



ORDER PRIMULALES 

 FAMILY 190. MYRSINACSAE 



Trees or shrubs, rarely (Afrardisia) herbs. Leaves alternate, undivided, 



gland-dotted, without stipules. Flowers in racemes panicles umbels or heads, 



regular, 4: — 5-, very rarely 6 — 7-merous. Petals white or red, rarely yellow or 



green, usually united below. Stamens as many as the petals, opposite to them, 



inserted on the corolla; Anthers opening inwards, more rarely near the apex. 



Ovary superior, rsively -{Maesa) half-inferior, i -celled, with a frige central, usually 



•globular placenta. Ovules several or many, inverted or half-inverted. Style 



simple or wanting ; stigma entire or lobed. Fruit a berry, a drupe, or a nut. 



Seeds with copious albumen. Embryo with a long radicle and small cotyledons. 



— Genera 10, species 130. (Plate 121.) 



I. Ovary inferior or half-inferior. Ovules seated upon the surface of the 



placenta. Fruit several-seeded. Petals united below, white. Stigma 



broadened. Shrubs.' Flowers in racemes or panicles. — Species 10. 



2D 



