14. Style long, with 1 stigma. Leaves whorled, obovate.--Species 1. Island of Socotra. =Haya= Balf. fil. Style short, with 3 stigmas. Leaves opposite or alternate, narrow.--Species 3. North and South Africa and mountains of East Africa and Madagascar. =Corrigiola= L. 15. (7.) Petals 5. Stamens 5. Embryo curved. Leaves linear, fleshy.--Species 1. Nubia. =Sphaerocoma= Anders. Petals none. Stamens 1-2. Embryo straight or almost so. Leaves lanceolate, flat.--Species 2. South and Central Africa. =Pollichia= Soland. 16. (2.) Styles united below. [Tribe POLYCARPEAE.] 17 Styles free from the base. 22 17. Sepals 4, concave, minutely toothed. Petals none. Stamens 3. Ovules few. Style short; stigmas 2. Flowers solitary, axillary, with two bracteoles. Leaves very small, densely crowded.--Species 1. Island of Kerguelen. =Lyallia= Hook. Sepals 5. Stamens 3-5. Ovules numerous. Stigmas 3 or 1. 18 18. Petals none. Sepals keeled, entire. Stamens 3. Leaves linear. Stipules dark red at the base.--Species 1. North-west Africa (Algeria). =Ortegia= Loefl. Petals 5. 19 19. Petals 2-parted.--Species 1. Tropical and South Africa. =Drymaria= Willd. Petals entire, notched, or 2-toothed. 20 20. Sepals with a tooth on each side. Leaves awl-shaped. Stipules cut up into bristles.--Species 1. North Africa. =Loeflingia= L. Sepals entire. 21 21. Sepals keeled. Style short, 3-cleft.--Species 6. Some are used medicinally. =Polycarpon= Loefl. Sepals rounded on the back. Style long or rather long.--Species 25. Some are used medicinally. (_Polycarpia_ Webb, _Polia_ Lour., including _Robbairea_ Boiss.) (Plate 45.) =Polycarpaea= Lam. 22. (16.) Leaves with scarious stipules. Ovules numerous. [Tribe SPERGULEAE.] 23 Leaves without stipules. [Tribe ALSINEAE.] 25 23. Ovary incompletely 3-celled. Ovules basal. Styles 3. Stamens 5. Flowers white. Leaves oblong or ovate.--Species 5. North Africa and Madagascar. =Telephium= L. Ovary completely 1-celled. Ovules central. Flowers in raceme-like cymes. Leaves linear or subulate. 24 24. Styles and fruit-valves 3.--Species 10. North and South Africa, Abyssinia. Some are used medicinally. (_Lepigonum_ Fries, _Tissa_ Adans.) =Spergularia= Pers. Styles and fruit-valves 5.--Species 4. North Africa; also naturalized in Central and South Africa. Used as fodder. “Spurry.” =Spergula= L. 25. Ovule 1. Styles 3. Stamens 10. Petals none, but usually 5 thread-like scales opposite the sepals. Fruit 3-valved to the middle. Leaves subulate. Flowers in clusters consisting of fertile and sterile flowers.--Species 1. North Africa. =Queria= L. Ovules 3 or more, rarely (_Buffonia_) 2. 26 26. Petals 2-parted, 2-cleft, or distinctly notched. Flowers solitary or in panicle-like cymes. 27 Petals entire, minutely toothed, obscurely notched, or wanting. 28 27. Fruit globose. Styles 2-3, rarely 4-5, alternating with the sepals.--Species 6. Extra-tropical regions and mountains of the tropics. Some are used medicinally. “Stitchwort.” =Stellaria= L.