Linum perenne (diameter variable) : 100 (?).
Linum flavum : 100.
Pulmonaria officinalis : 78.
Pulmonaria angustifolia : 91.
Polygonum fagopyrum : 82.
Leucosmia Burnettiana : 99.
Aegiphila elata : 62.
Menyanthes trifoliata : 84.
Limnanthemum Indicum : 100.
Villarsia (sp.?) : 75.
Forsythia suspensa : 94.
Cordia (sp.?) : 100.
Gilia pulchella : 100.
Gilia micrantha : 81.
Sethia acuminata : 83.
Erythroxylum (sp.?) : 93.
Cratoxylon formosum : 86.
Mitchella repens, pollen-grains of the long-styled a little smaller.
Borreria (sp.?) : 92.
Faramea (sp.?) : 67.
Suteria (sp.?) (Fritz Muller) : 75.
Houstonia coerulea : 72.
Oldenlandia (sp.?) : 78.
Hedyotis (sp.?) : 88.
Coccocypselum (sp.?) (Fritz Muller) : 100.
Lipostoma (sp.?) : 80.
Cinchona micrantha : 91.
TRIMORPHIC SPECIES.
Column 1: Name of species.
Column 2: Ratio expressing the extreme differences in diameter of the pollen-
grains from the two sets of anthers in the three forms.
Lythrum salicaria : 60.
Nesaea verticillata : 65.
Oxalis Valdiviana (Hildebrand) : 71.
Oxalis Regnelli : 78.
Oxalis speciosa : 69.
Oxalis sensitiva : 84.
Pontederia (sp.?) : 55.
Column 1: Name of species.
Column 2: Ratio between the diameters of the pollen-grains of the two sets of
anthers in the same form.
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