Philonotis gracillima


Philonotis gracillima Ångström, Öfvers. Kongl. Vetensk.-Akad. Förh. 33(4): 17. 1876.

Treatment appears in FNA Volume 28. Treatment on page 108. Mentioned on page 106.

Plants small, delicate, in lax to dense tufts, bright green. Stems 0.5–1 cm, erect, simple to sparingly branched; proximal rhizoids absent or weakly developed. Leaves erect to incurved when dry, erect-spreading to spreading when moist, ovate-oblong to ligulate or ovate-lanceolate to ovate, 0.3–1 mm; margins revolute throughout or revolute proximally and plane distally, bluntly serrulate, teeth paired; apex broadly acute to rounded-obtuse; costa 7/8 leaf length or subpercurrent, distal abaxial surface rough; laminal cells obscurely to clearly prorulose at distal ends; basal cells rectangular, 25–35 × 10–15 µm; distal cells subquadrate to oblong rhomboidal, 20–30 × 10–12 µm. Specialized asexual reproduction by occasional short brood branches in distal leaf axils. Sexual condition dioicous; perigonia gemmate. Sporophytes unknown.

Habitat: Moist, rocky, limey soil, rock crevices
Elevation: low to moderate elevations (0-1500 m)


V28 168-distribution-map.gif

Ala., Fla., Kans., La., Miss., N.C., Okla., Tex., Mexico, West Indies, Central America, South America.


P. A. Florschütz (1964) treated Philonotis gracillima as a variety of P. uncinata. Philonotis gracillima is distinguished in the flora area by the combination of a broad leaf apex (both broadly acute and rounded-obtuse apices may occur on the same plant), relatively short costa, and lax, pellucid laminal cells.

Selected References


Lower Taxa

... more about "Philonotis gracillima"
Dana G. Griffin III +
Ångström +
Ala. +, Fla. +, Kans. +, La. +, Miss. +, N.C. +, Okla. +, Tex. +, Mexico +, West Indies +, Central America +  and South America. +
low to moderate elevations (0-1500 m) +
Moist, rocky, limey soil, rock crevices +
Philonotis gracillima Ångström, Öfvers. Kongl. Vetensk.-Akad. Förh. +
Bartramidula +
Philonotis gracillima +
Philonotis +
species +