The flowering plants of Africa: An analytical key to the genera of African phanerogramsThonner, Franz
Science
The flowering plants of Africa: An analytical key to the genera of African phanerograms
Thonner, Franz
Angiosperms -- Africa; Plants -- Africa
Glossocalyx longicuspis Benth.
_A_ Flowering branch. _B_ Female flower. _C_ Female flower cut
lengthwise. _D_ Carpel (the ovary cut lengthwise).]
clusters, monoecious.--Species 1. Madagascar. (Under _Mollinedia_ Ruiz
& Pav.) [Tribe MOLLINEDIEAE.] =Ephippiandra= Decne.
Receptacle narrowly pitcher-shaped, subsequently increasing in size and
enclosing the carpels. Perianth little developed. Stamens numerous.
Anther-halves separate. [Tribe MONIMIEAE.] 5
5. Stamens with a gland on each side. Carpels few, not sunk
in the receptacle. Shrubs. Leaves opposite. Flowers in cymes,
dioecious.--Species 4. Madagascar and the neighbouring islands. They
yield timber and medicaments. =Monimia= Thouars
Stamens without glands. Carpels numerous, sunk in the
receptacle.--Species 20. Madagascar and the neighbouring islands.
Some species yield timber, dyes, or medicaments. (_Ambora Juss._)
=Tambourissa= Sonn.
FAMILY 84. LAURACEAE
Trees or shrubs. Leaves undivided, without stipules, sometimes
scale-like. Flowers regular. Perianth of 4 or 6 segments. Fertile
stamens 4-14, perigynous. Anthers opening by 2-4 valves. Ovary
superior, very rarely (_Hypodaphnis_) inferior, 1-celled. Ovule
1, pendulous, inverted. Style simple. Seed exalbuminous; embryo
straight.--Genera 15, species 75. (Plate 51.)
1. Anthers 2-celled. [Subfamily =LAUROIDEAE=.] 2
Anthers 4-celled. [Subfamily =PERSEOIDEAE=.] 11
2. Anthers all turned inwards, 8-14, usually 12. Perianth 4-cleft.
Flowers in umbels, dioecious or polygamous. Leafy shrubs or
trees.--Species 2. North Africa. They yield timber, oil, perfumes,
spices, and medicaments, and are also used as ornamental plants.
“Laurel.” [Tribe LAUREAE.] =Laurus= L.
Anthers partly (the outer) turned inwards, partly outwards, 4-12,
usually 9. Flowers hermaphrodite or polygamous, usually panicled. 3
3. Stem thread-shaped, twining, parasitic. Leaves reduced to minute
scales. Perianth 6-cleft, the outer segments much smaller than the
inner. Fertile stamens 9.--Species 4. Southern and tropical Africa.
Some are used medicinally. [Tribe CASSYTHEAE.] =Cassytha= L.
Stem shrub-or tree-like. Leaves perfectly developed. Perianth with 6,
rarely 4, subequal segments. 4
4. Receptacle accrescent, cupuliform, enclosing the fruit.
Perianth-segments 6. Fertile stamens 9, rarely 12. [Tribe
CRYPTOCARYEAE.] 5
Receptacle scarcely or not accrescent, not enclosing the fruit. [Tribe
APOLLONIADEAE.] 6
5. Fruit incompletely 6-celled. Pericarp adnate to the receptacle, but
free from the seed. Cotyledons 6-lobed. Leaves penninerved.--Species
8. Madagascar. They yield timber, oil, condiments, and medicaments.
(_Agathophyllum_ Juss.) =Ravensara= Sonn.
Fruit completely 1-celled. Pericarp easily separable from the
receptacle, but adnate to the seed.--Species 10. Madagascar, South and
East Africa. =Cryptocarya= R. Br.
6. Perianth 4-parted. Fertile stamens 4. Shrubs. Leaves
linear-lanceolate.--Species 2. Madagascar. =Potameia= Thouars
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