208. SCROPHULARIACEAE 489 



48. Fruit pointed. Stamens all fertile. Herbs or undershnibs. — Species 5. 



South and Central Africa Peliostomum E. Mey. 



Fruit blunt. Shrubs. — Species 25. Central and South Africa. 



Aptosimum Burch. 



49. Stamens 4. — Species 18. Central and North Africa. Some are used as 



ornamental or medicinal plants Celsia L. 



Stamens 5. — Species 17, North Africa and northern East Africa ; two 

 of the species also naturalized in South Africa and in the Mascarene 

 Islands. They yield fish-poison and medicaments, and serve as orna- 

 mental plants. " Mullein." Verbascum L. 



50. (45.) Ovules and seeds solitary in each cell of the ovary and fruit. Fruit 



indehiscent. Stamens 2 or 4. Anther-halves confluent. Flowers in 

 spikes, more rarely in heads or panicles or solitary. Leaves entire, 



toothed, or lobed. [Tribe SELAGINEAE.] 51 



Ovules and seeds two or more in each cell, usually numerous. ... 56 



51. Corolla 4-lobed, deeply slit in front. Calyx entire or 2-parted. Stamens 4. 



Flowers in spikes 52 



Corolla 5-lobed, not slit at one side. Calyx with 3 or 5, rarely with 2 

 segments 53 



52. Calyx slit open in front, entire or notched behind. — Species 30. South 



and Central Africa Hebenstreitia L. 



Calyx divided into two narrow entire segments. — Species 10. South 

 Africa Dischisma Choisy 



53. Fertile stamens 2. Corolla-lobes subequal. Calyx 5-lobed. Fruit i- 



seeded. Shrubs. Flowers in spikes 54 



Fertile stamens 4. Corolla-lobes more or less unequal 55 



54. Sterile stamens present. — Species i. South Africa. Gosela Choisy 

 Sterile stamens absent. — Species 3. South Africa. Agathelpis Choisy 



55. Calyx subequally 5-toothed, adnate at the base to the bract. Fruit i- 



seeded. — Species 5. South Africa Microdon Choisy 



Calyx with 5 segments, free from the bract, or with 2 — 3 segments. Fruit 

 2-seeded. — Species 160. Southern and tropical Africa. Some are used 

 as ornamental plants. (Including Walafrida E. Mey.) . Selago L. 



56. (50.) Corolla two-hpped with concave, bladdery-inflated lips and a very 



short tube. Stamens 2. —Species i. Naturahzed in the Canary Islands. 



An ornamental plant. [Tribe CALCEOLARIEAE.] Calceolaria L. 



Corolla two-lipped with flat or convex hps, or nearly regular. ... 57 



57. Corolla spurred or saccate, two-lipped. Calyx 5-parted. Fruit a cap- 



sule. . 58 



Corolla neither spurred nor saccate, rarely slightly gibbous, but then calyx 

 5-lobed or 3-parted 71 



58. Corolla without a distinct tube. Capsule opening by 2 or 4 valves. Herbs. 



[Tribe HEMIMERIDEAE.] 59 



Corolla with a distinctly developed tube. Stamens 4. [Tribe ANTIR- 

 RHINEAE.l 62 



