94 SOUTH AFRICAN BOTANY 
produced. Each bunch is a dichasium of scorpioid 
cymes, e.g, Dead Nettle. 
62. Mixed Inflorescences. 
mixture of inflorescences. For example, in the Sun- 
flower, while each inflorescence is indefinite, yet taking 
all the inflorescences the arrangement is definite, for the 
terminal one opens first. In the cultivated Geranium 
cymose clusters are arranged in umbels. In the Lilac 
we have a raceme of cymes. 
In many plants we find a 
PRACTICAL EXERCISES. 
1. Examine the inflorescences of Foxglove, Ornithogalum, 
Salvia, Sunflower, Crassula, Aloe, Cotyledon, Protea, Wallflower, 
and state what kind of inflorescence they possess. 
Draw sketches of the inflorescence and number the flowers 
in the order they appear. 
2. Describe the following flowers using the following scheme : 
Oxalis, Pea, Wild Rose, Peach, Apple, Gladiolus, Acacia, 
Antirrhinum. 
Scheme. 
Flower,—Say whether flower is sessile or pedicellate, brac- 
teate or ebracteate, complete or incomplete, hermaphrodite 
or unisexual (pistillate or staminate,) symmetrical (actinomorphic 
or zygomorphic) or asymmetrical, heterostylic (dimorphic, 
trimorphic, etc.), dichogamous (protandrous or protogynous) 
hypogynous, perigynous, or epigynous, regular or irregular. 
Calyx.—Say whether flower is poly- or gamo-sepalous, and 
give number of sepals. 
Corolla,—Say whether flower is poly- or gamo-petalous and give 
the number of petals and shape of corolla. Say whether petals 
are clawed or ligulate, and whether a corona or nectaries are 
present. 
If calyx is petaloid the corolla and calyx may be described 
together under the term Pertanru. In this case poly- or gamo- 
phyllous should be used instead of poly- or gamo-sepalous, ete. 
Androecium.—Give the number of stamens. Say whether 
