MNIUM. 349 



10. Mnium stellare Reich. (Tab. XLVII. D.). 



Densely tufted, 1-4 inches high, deep green or bluish 

 green, soft. Stems and sterile shoots erect, similar. Leaves 

 gradually larger upwards, the upper rather crowded, elliptic- 

 oblong, decurrent, when dry appressed, twisted and slightly 

 crisped, rounded at the apex and acute, or obtuse and apiculate ; 

 not bordered, margin with a single series of irregular rather 

 distant spinulose obtuse teeth from below the middle ; nerve thin, 

 vanishing below apex, not spinulose at back ; cells irregular, sub- 

 hexagonal or sub-quadrate, usually angular, incrassate. Seta 

 solitary ; capsule inclined or horizontal, oblong ; lid conical, 

 obtuse ; peristome yellowish. Dioicous. Male flower discoid. 



Hab. Shady woods and rocks, not common. Fruit very rare, summer. 



Known by its soft tufts, the leaves broad (but exhibiting considerable variety in 

 form), wanting the cartilaginous border which is conspicuous in almost all the other 

 species, being especially shiny and noticeable in the dry state ; the colour also is- 

 somewhat different from that of any other species, and on the whole the plant is not 

 difficult to determine, when once known ; under the microscope of course the non- 

 bordered, toothed leaves at once distinguish it. 



An allied continental species, M. Blyttii, has the leaves bordered, the cells 

 smaller, the teeth some'what in pairs. 



11. Mnium cinclidioid.es Hiibn. (Byum cinclidioides Blytt.) 



(Tab. XLVII. E.). 



Stems tall, 3-6 inches, slender, simple or with a few slender 

 lateral branches ; sterile branches similar, longer and more slender. 

 Loosely tufted, yellowish green. Leaves thin, large, rather 

 distant, lower ovate, upper widely oblong-Ungulate , rounded and 

 obtuse with a minute apiculus, somewhat undulate, when dry 

 somewhat crisped ; not bordered, margin entire or very faintly 

 irregular here and there with projecting cells ; nerve ceasing 

 considerably below apex ; cells rhomboid -hex agonal ' , more or less 

 seriate in radiating lines, 2-3 times as long as wide, about 20 p in 

 width, thin-walled, sparingly chlorophyllose ; the marginal in 

 several rows parallel to the edge of the leaf, longer and narrower, 

 but not forming a distinct or cartilaginous border. Seta long, 

 slender, capsule shortly oval, pendulous ; lid conical, apiculate ; 

 peristome brownish. Dioicous. 



Hab. Mountain bogs, rare. Fr. summer. 



A very fine species, known at once from the two following plants, which it most 

 resembles, by the pale yellowish colour, and the thinner leaves without a distinct 

 border. 



