mention two peculiar characters of porella thallus
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Leaves: The stem has large dorsal leaves and a single row of small ventral leaves. The dorsal leaves are bibbed. The two lobes are unequal. The lower lobe is smaller and is called lobule.
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Two peculiar characteristics of porella thallus are the dorsoventral stem which is bipinnately or tripinnately branched, and large-unequal bilobed dorsal leaves and a single row of ventral leaves.
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Porella is a large and common liverwort spread worldwide. This plant does not contain a true stem, true leaves, or roots. Therefore they are referred to as thallus. Two peculiar characteristics of porella thallus include: -
- It consists of a slender dorsoventral and an extensively branched stem. The branches are either bipinnate or tripinnate.
- Large dorsal leaves are present with only a single row of ventral leaves. The dorsal leaves are present with two unequal lobes (bilobed).
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