Bryophytes (Mosses, Liverworts, and Hornworts) • Earth.com

Sphaerocarpos texanus

(Sphaerocarpos texanus)

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Description

Sphaerocarpos texanus, the Texas balloonwort, is a species of liverwort in the Sphaerocarpaceae family, found in the Americas, northern Africa and Europe.Sphaerocarpos texanus are small, thalloid, dioecious liverworts. The species is sexually dimorphic, with male plants usually 3-5 mm in diameter, females up to 12 mm in diameter.Both male (bearing antheridia) and female (bearing archegonia) plants are bright green, with the thallus branching up to several times. The plant is a winter annual, appearing in autumn and dying in spring.Notably, the spores occur in sets of four, called tetrads. Unlike most other species of liverwort, the spores stay in these tetrads until they germinate

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Hepaticophyta
Class: Marchantiopsida
Order:Sphaerocarpales
Family:Sphaerocarpaceae
Genus:Sphaerocarpos
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