Globulinella

Steere

J. Wash. Acad. Sci. 36: 221. 1946 ,.

Etymology: Genus Globulina and Latin -ella, diminutive
Basionym: Seligeria subg. Globulina Müller Hal. Gen. Musc. Frond., 306. 1901,
Treatment appears in FNA Volume 27. Treatment on page 605. Mentioned on page 480, 606.

Plants small, in tufts or gregarious; dark green to golden brown or reddish-brown. Stems 1–5 mm, simple or forked; scleroderm present, central strand well developed; axillary hairs short, with hyaline or light-brown basal-cell. Stem-leaves appressed when dry, erect when wet, oblong-ovate to spathulate, obovate or orbicular, concave above, quickly tapering to base, margins entire to somewhat wavy, plane proximally, erect to broadly incurved above; apex broadly rounded, cucullate; costae single, ending below apex, frequently spurred above, distal adaxial cells quadrate to shortrectangular, enlarged and bulging above; in cross-section with single row of guide cells, adaxial cells similar in size to guide cells, somewhat thickened, abaxial stereid or substereid band well developed, epidermal-cells somewhat larger, thickened; laminal cells smooth, rectangular, thickened, medial laminal cells roundedquadrate, oblate or shortrectangular, smooth, thickened, distal cells quadrate to angular, thickened or incrassate, alar and marginal cells not differentiated. Specialized asexual reproduction by gemmae, rare, clavate to spherical, in leaf-axils. Sexual condition dioicous. Perichaetia terminal, interior leaves little differentiated or somewhat sheathing. Seta elongate, redbrown, smooth. Capsule stegocarpous, theca oblong, operculum conic-rostrate; peristome teeth 16, cleft and irregular, erect from very short basal membrane. Calyptra small, cucullate, smooth. Spores 8–12 µm, round, weakly papillose. KOH laminal color reaction yellow.

Distribution

North America, Central America, South America in temperate and tropical areas

Discussion

Species 2 (1 in flora).

Globulinella can be recognized by its small stature, spathulate or oval leaves with broadly rounded, cucullate apex, and strong, laterally spurred costa ending below the apex. The plants grow in crevices or protected places on the sides of calcareous boulders or ledges. Gemmae have been reported by R. H. Zander (1993) from a Mexican collection.

... more about "Globulinella"
elongate +  and quadrate +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Robert E. Magill +
Steere +
reniform +  and rounded +
light-brown +  and hyaline +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
Seligeria subg. Globulina +
obovoid +
cucullate +
stegocarpous +
monoicous +, dioicous +  and sexual +
flat to bulging +
vesiculose +  and thick-walled +
Few (?) +  and Several (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
quadrate +  and angular +
incrassate +  and thickened +
North America +, Central America +  and South America in temperate and tropical areas +
differentiated +
Genus Globulina and Latin -ella, diminutive +
multicellular +
yellow +  and orange-red or red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
spathulate +  and ovate +
reduced +
dentate +  and entire +
erect +  and broadly incurved +
plane +, wavy +  and entire to somewhat +
dioicous +  and sexual +
not differentiated +
shortrectangular +, oblate +  and roundedquadrate +
conic-rostrate +
photosynthetic +
compound +, simple +, hollow +  and solid +
flattened +  and 2-fid +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
J. Wash. Acad. Sci. +
magill1977a +
straight +
elongate +
2 +  and 1 +
yellow +  and laminal +
tapering +, concave +, oblong-ovate +  and spathulate obovate or orbicular +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Globulinella +
Pottiaceae subfam. Pottioideae +
yellow distally and red +, orange +, red +  and yellow +
stemless +  and perigoniate +
dark green;golden brown or reddish-brown +
plant +  and gregarious +