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Published In: Journal of the Washington Academy of Sciences 36: 221. 1946. (J. Washington Acad. Sci.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 2/15/2011)
Acceptance : Accepted
Project data     (Last Modified On 2/15/2011)
Discussion:

Globulinella globifera is a very small plant with tumid stems, and erect-appressed leaves that give it an aspect not seen in other Central American Pottiaceae. Distinctive features of the species include its broadly oval to elliptic leaves with obtuse-cucullate apices, and smooth, firm, thick-walled upper leaf cells. Its costa is subpercurrent, often spurred, has a single dorsal stereid band, and quadrate to short-rectangular, strongly bulging ventral superficial cells. Husnotiella revoluta and G. globifera have similarly shaped leaves and spurred costae with only dorsal stereids. Husnotiella revolutus differs from G. globifera in having revolute leaf margins and papillose leaf cells. Although Gyroweisia obtusifolia has been included in the synonym of G. globifera, it differs in having lanceolate to lingulate, obtuse leaves, papillose leaf cells, and two costal stereid bands.  

Barbula pellata and B. subagraria were described by Müller (1897a) from a single  Bernoulli & Cario collection. I have not seen material marked “type” of B. pellata, rather the type material of B. pellata cited above was separated from the type collection of B. subagraria.

Illustrations: Magill (1977, Figs. 1–11); Zander (1993, Pl. 74 1–8); Sharp et al (1994, Fig. 269 f–j). Figure 30.
Habitat: On soil; 866–933 m.
Distribution in Central America: GUATEMALA. Suchitepéquez: Bernoulli & Cario 127 (NY). EL SALVADOR. La Libertad: Chapman B-4 (MICH).
World Range: South-Central U.S.A.; Mexico; Central America.

 

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Globulinella globifera (Hampe) Steere in Steere & Chapman, J. Wash. Acad. Sci. 36: 221. 1946.

Seligeria globifera Hampe, Bot. Zeitung (Berlin) 28: 49. 1870. Globulina globifera (Hampe) C. Müll. ex Broth., Nat. Pflanzenfam. 1(3): 389. 1902. Protologue: Mexico. Hab. ad saxa calcarea pr. Veracruceum leg. Strebel.

Barbula pellata Schimp. in C. Müll., Bull. Herb. Boisser 5: 193. 1897. Protologue: Guatemala. Mazatenango. Coll. [Bernoulli & Cario] N° 127 cum Barbula subagraria. (NY), syn. nov.

Plants small, green to golden or reddish brown, in dense tufts, 1–3 mm high. Stems simple or forked, reddish yellow, erect, epidermal cells short-rectangular, sclerodermis present to weakly present, central strand well-developed; rhizoids sparse. Axillary hairs 2-3 cells long, upper 1–2 cells hyaline, clavate, basal cells quadrate, hyaline to light-brown. Leaves 0.3–0.8 mm long, oval, oblong or elliptic, spreading at base, rosulate, somewhat tumid, appressed-imbricate when dry, erect to erect-incurved when wet; apices obtuse, cucullate; lamina unistratose; margins entire, plane to erect; costa stout, subpercurrent, often spurred above, upper ventral superficial cells quadrate to short-rectangular, bulging, guide cells and single (dorsal) stereid band present, ventral surface layer enlarged, bulging near apex; cells smooth, upper cells round, quadrate, short-rectangular, triangular or oblate, 6–10 x 2–8 μm, thick-walled, basal cells quadrate, short or long-rectangular, hyaline, 10–20 x 6–10 μm, alar cells not differentiated. Dioicous. Sporophytes not known from Central America (description from Pringle 10563, MO). Perichaetia and perigonia terminal; perichaetial leaves enlarged, somewhat sheathing. Setae smooth, 4–6 mm long, yellow, becoming red-brown with age. Capsules oblong, erect, 0.5–1 mm long, smooth; exothecial cells short-rectangular, firm-walled; stomata in neck; opercula erect, conic-rostrate, 0.5 mm long; annuli well-developed, of 1–2 rows of vesiculose cells, often adhering to the capsule mouth after dehiscence; peristome teeth 16, yellow, erect, inserted within the mouth, spiculose, basal membrane low. Spores 8–10 μm, faintly roughened. Calyptrae yellow, cucullate, smooth, 1.0–1.5 mm long.

 

 
 
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