61. BARTRAMIA. Hedw.

1. Caps. erect, perist. single.

367. B. stricta. Brid. St. loosely tufted, glaucous green; l. erecto-patent, rigid when dry, lanceolate-subulate, nerve excurrent into a serrate arista; caps. ovate-globose furrowed when dry, seta four-sided at summit, twisted to right when dry; lid convex or mammillate. [Bry. Eur., IV., t. 316. Schp. Syn., 417.]

On the ground and stones. Early summer.

Maresfield, Sussex (Mitten), 1862.

2. Caps. cernuous, perist. double.

a. Branches fastigiate. Monoicous.

368. B. rigida. Bals. & Not. St. ¼–½in.; br. erect or recurved; l. erecto-patent, straight, rigid, lanceolate, finely serrulate, nerve excurrent, cap., large, sub-spherical, furrowed when dry, and cernuous; lid conical pointed; seta erect; inner perist. sometimes imperfect.

Shady banks, mountains. IX. X.

b. Br. fasciculate: dioicous.
* L. plicate and sheathing at base.

369. B. arcuata. Brid. St. 1–4in., with reddish brown radicles; l. ovate-lanceolate from a broad erect sheathing base, scabrous, serrulate, spreading; caps. sub-globose, almost pendulous, on an arcuate seta, furrowed when dry.

Waterfalls and wet rocks. IX. X.

* * L. not sheathing or plicate. (Philonotis.)

370. B. (Philonotis) fontana. Brid. Stem 1–6in., with reddish black radicles; l. ovate-acuminate, short and appressed or lanceolate secund, or spreading and longer (generally plicate at base), nerve almost excurrent; perig. l. obtuse, nerveless; caps. sub-globose large, furrowed when dry.

Springs and wet places. VI.

var. β. alpina. st. short, l. ovate-lanceolate, mucronate. γ. falcata. l. falcato-secund, nerve thick. δ. pumila. plant smaller in all its parts.

371. B. (Philonotis) cæspitosa. Wils. MS. St. 1–2in. reddish, cæspitose, radiculose below; l. falcato-secund, lanceolate acuminate, gradually tapering from base upwards, concave, margins sub-serrulate not recurved, nerved to apex, areolæ lax, largest at basal angles; perig. l. in a stellate tuft, almost triangular from a very broad base, finely sub-serrulate, nerved to apex.

Walton swamp, Cheshire (Wilson): male plant only.

372. B. (Philonotis) adpressa. Fergusson. “Plant widely cæspitose, erect, 2–3in. either dull, glaucous green, or reddish; l. papillose, erect when moist, with one wide plica on each side of nerve, incurved towards apex, slightly twisted when dry, widely ovate from an amplexicaul base, not acuminate, apex either obtuse or cucullate, with a very slight mucro, or in the more slender forms rather acute, margin denticulate slightly reflexed; nerve very thick continuous; areolæ small, ovoid above, shorter and wider towards the base.” [G. E. Hunt. Mem. Lit. & Sci. Soc., Manchester, vol. V., 102, 1872.]

Glen Prossen, &c., Clova (Fergusson); Glas Mheal, Perthshire 2500 ft. (Hunt).

373. B. (Philonotis) seriata. Mitt. Musc. Ind. Orient. “L. spirally arranged, from a sub-erect base, patent towards apex, ovate acute plicate, margin distinctly reflexed; areolæ linear above, small and ovoid towards base; perig. l. from an erect dilated base, widely spreading, cordatetriangular obtuse, areolæ small obscure elongate-quadrangular, above large linear and reddish at base; nerve thick, indistinct, continuous or vanishing below apex, margin slightly denticulate.” [Hunt. loc. cit., p. 103.]

Springs at head of Clova; Ben-na-Bourd (Gardiner).

374. B. (Philonotis) calcarea. B. & S. St. about 2in.; l. ovate-lanceolate, tapering gradually from middle upwards, concave rigid secund, margin serrulate, not reflexed, strongly nerved to apex; areolæ large oblong, long hexagonal at base; perig. l. acute, triangular from a broad erect base, nerved to apex: caps. sub-globose, inclined or cernuous.

Wet places. VII.

c. Branches dichotomous and fastigiate.
* monoicous.

375. B. pomiformis. Hedw. St. ½–2in.; l. spreading linear-lanceolate, not concave, doubly spinuloso-serrate, rough, crisp when dry, nerve slightly excurrent; caps. sub-globose, cernuous, lid small conical.

Dry sandy banks. V.

var. β. crispa. “l. longer, less crowded, branches often longer than fruit-stalk.”

376. B. Halleriana. Hedw. St. 1–3in., radiculose below; l. spreading or secund, linear-subulate from a broad pale erect sheathing base, rough, serrate, nerve excurrent; caps. sub-globose, on a short curved seta.

Moist alpine and sub-alpine rocks. VI. VII.

* * Synoicous.

377. B. gracilis. Floerke, 1799. (B. Oederi, Swartz, 1800). St. 1–3in.; l. linear-lanceolate, recurved from an erect, not sheathing base, crisped when dry, margins recurved, serrate above, keeled, smooth; caps. small globose, oblique, lid convex.

Moist shady rocks. V.

378. B. ithyphylla. Brid. St. ½–2in.; l. from an erect broad base sharply bent back and lanceolate-subulate, rigid, serrulate, not crisped when dry, broadly nerved to apex; caps. globose, almost erect or cernuous.

Alpine and sub-alpine rocks. VI.