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16 KEY TO PLANTS. 
(6) Albumen mealy. Leaves parallel-veined, 
crowded at the base or summit of the 
stem, more rarely scattered on a pendul- 
ous stem. Inflorescence usually many- 
flowered. Mostly plants growing upon 
trees or rocks. Flowers regular. An- 
thers dehiscing by two longitudinal slits. 
Ovules anatropous. America. 
Bromeliaceae. 
34 (a) Fertile stamens 1, 2, or 5, usually adnate 
(1) to the style. Flowers irregular. 35. 
(b) Fertile stamens 3, 6, or more, free from 
the style. Flowers usually regular. 36. 
35 (a) Andrcecium consisting of 1 fertile stamen 
without staminodes, or with 2 small 
(not petaloid) staminodes, or of 2 fertile 
stamens with 1 staminode. Ovules 
numerous. Style partially or wholly 
adnate to the stamens. Seeds without 
albumen. Veins of the leaves usually 
springing from their base. Orchideae. 
(6) Andrcecium consisting of 1 fertile stamen 
and 1-5 at least partially petaloid sta- 
minodes, or of 5 fertile stamens with 1 
or without a staminode; if staminodes 
2, then only 1 ovule in each cell of the 
ovary. Style free or partially adnate to 
