Sphaerocarpos texanus Austin

Sphaerocarpos texanus Aust. Bull. Torrey Club 6: 158. 1877
Sphaerocarpos terrestris Bisch. Nova Acta Acad. Leop.-Carol. 13: 829, in part. 1827 sphaerocarpos cahfornicus Aust. Bull. Torrey Club 6305 1879 sphaerocarpos Berter it Aust. Hep. Bor.-Am. 34. 1873. Not 5. Berterii Mont. 1838. sphaerocarpos Mtchehz cahformcus Aust.; Underw. Bull. 111. Lab. Nat. Hist. 2: 30 1884 Sphaerocarpos terrestris calif ornicus Underw. Zoe 1: 364. 1890.
Archegonial thallus suborbicular or somewhat cuneate, 3-5 mm. X 4-8 mm., cespitose, bright-green when living, dingy-green or sometimes light olive-green when dried, dichotomous' the leaf -like unistratose lobes almost entirely concealed by the involucres; marginal cells generally quadrate, averaging 45 m; archegonial involucres 1.2-2.6 mm. high, sessile, longcylindric, fusiform-clavate, very rarely subpyriform, more or less acuminate, the cells at the small orifice usually arcuate-protuberant, 45-60 m; antheridial thallus oblong to orbicular, 2 mm. in diameter, forking several times; antheridial involucres 270-360 /* high, purplish; capsule 675 M in average diameter, the bulbous foot remaining in the thallus on detachment of capsule; spores permanently united in tetrads, these 72-170 M in diameter, golden-brown to dark opaque brown, regularly areolate, minutely granulate, the meshes 13-30 M in diameter, each in rare cases with a single median papilla or tubercle, the ridges finally high, sinuous, crenulate, or deeply and irregularly dissected, occasionally forming obtuse spines at the points of intersection.
Type locality: [San Marco] Texas.
Distribution: Virginia to Missouri, Florida, Texas, and CaUfomia; also in Uruguay, Europe, and northern Africa.

Sphaerocarpos texanus, the Texas balloonwort, is a species of liverwort in the Sphaerocarpaceae family, found in the Americas, northern Africa and Europe.