Hypertelis, Fenzl, 1836

Christenhusz, Maarten J. M., Brockington, Samuel F., Christin, Pascal-Antoine & Sage, Rowan F., 2014, On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae, Phytotaxa 181 (4), pp. 238-242 : 240-241

Key to the species of Hypertelis and Kewa

1. Leaves in basal and distant whorls; the 20–30 stamens in bundles ............................................................... Hypertelis spergulacea

1. Leaves alternate or subopposite along the stem, often crowded but not whorled; the stamens 3–15, free ...................................... 2

2. Perennial herbs; stems woody at least at the base ............................................................................................................................ 3

2. Annual herbs; stems herbaceous throughout, not woody at the base ............................................................................................... 8

3. Flowers more than 6 mm across; stipules minute, deciduous ( St. Helena) ..................................................................... Kewa acida

3. Flowers less than 4 mm across; stipules evident, persistent (Africa, Madagascar) ......................................................................... 4

4. Peduncles, pedicels and perianth with projecting glandular warts ......................................................................... Kewa salsoloides 4. Peduncles, pedicels and perianth smooth, without warts ................................................................................................................. 5

5. Stamens 10–15, if 10 then in mainland Africa ............................................................................................. Kewa angrae-pequenae

5. Stamens 5 or 10, if 10 then in Madagascar...................................................................................................................................... 6

6. Stamens 10; woody shrubs ( Madagascar) ............................................................................................................. Kewa suffruticosa

6. Stamens 5; herbs, woody at base only (mainland Africa) ................................................................................................................ 7

7. Umbels with 4–8 flowers; leaves subulate ............................................................................................................ Kewa bowkeriana

7. Umbels with 2–3 flowers; leaves flattened ............................................................................................................. Kewa caespitosa

8. Stamens 3; seeds smooth; peduncles shorter than the leaves ................................................................................... Kewa arenicola

8. Stamens 5; seeds tuberculate; peduncles longer than the leaves ....................................................................... Kewa trachysperma .