Densely tufted, olivaceous brown below, innov. yellow green with hoary tips; 3/4-[1-1/2]in. high, sparingly radiculose, dichotomous; l. imbricated, erecto-patent, lanceolate-subulate, channelled; not auricled; wings but little incurved, comal leaves broader lanceolate-acuminate, lowest muticous, rest prolonged into a diaphanous spinuloso-denticulate arista shorter than the leaf. Nerve three-fourths width of limb, lammelluligerous at back. Basal cells hyaline large and empty, gradually becoming obliquely oval and minute, chlorophyllose, a few fuscous alar cells in comal leaves; per l. oblong convolute, subulate at apex. Thecæ aggregated on short peduncles, oval, unequal, rough at base, lid obliquely rostrate. Calyp. reaching middle of capsule, sparingly fimbriate.
Dry heaths and stony places. Cornwall, Jersey, Scotland, Ireland.
b. Leaves unicolorous.
- auricled at base.
106. C. Shawii. Wils. MS. Tufts lax, yellow-green above, blackish brown below, 1-2in. high. Stems robust, with numerous radicles. L. erecto-patent, straight, rigid, from a somewhat contracted linear base, lanceolate, longly subulate, suddenly narrowed at one-third their length; margin involute above, apex acute, with a few minute denticulations. Nerve two-thirds width of base. Cells at basal wings enlarged lax reddish brown, exterior rows hyaline, above rectangular, and then rhomboido-elliptic. Leaves falcate when growing in dry places.
Outer Hebrides, 1866 (Mr. Shaw).
107. C. alpinus. Schmpr. Densely cæspitose, 2-3in.
