TENERIFFE MOSSES O 



Tortilla atrovirens (Sm.) Linclb. Old lava-flow, Guimar (no. 22), 

 c. fr. This is probably the var. edentula (B. & S.) Par., having the 

 peristome-teeth very short and fragmentary, and arising from a 

 somewhat broad, papillose basal membrane. The degree of de- 

 velopment of the teeth varies, however, a good deal, and the_ 

 variety would seem to be of dubious value. — T. muralis Hedw. 

 Above Arafo, about 4000 ft. alt. (no. 36), c. fr, A small form. 



Encalypta vulgaris Hedw. Cumbre, above Candelaria, at 

 about 6000 ft. (no. 30), c. fr. The form with calyptra smooth or 

 nearly so. New to the Atlantic Islands. 



Grimmia flaccida Lindb. (G. sphcerica Schp., Schistidinm jyul- 

 vinatum Brid.). Monte Yzana, above Guimar, at about 7000 ft. 

 (no. 4), c. fr. New to the Atlantic Islands. — G. tergestina Tomm. 

 Near Monte Yzana, above Guimar (no. 20). Sterile, but deter- 

 minable by the leaves. New to the Atlantic Islands. — G. campes- 

 tris Burch. Eisco de Fiomarcial (no. 11), c. fr. Old lava-flows, 

 Guimar (no. 16), c. fr. — ? G. Doniana Sm. Near Monte Yzana 

 (no. 13). A sterile plant, with the habit of G. Doniana or nearly 

 that of G. arenaria, but with usually rather wider leaves and 

 shorter basal cells, seems perhaps to belong here ; but it appears 

 to be dioicous. It may probably be nothing but a dioicous form 

 of G. Doniana, but in the absence of fruit it is scarcely safe to 

 record it as such. G. Doniana has not been recorded from the 

 Canaries. — G. trichophylla Grev. Rambleta, Pico do Teyde, 

 11,700 ft. (no. 27), S ■ — <-?• commutata Hiibn. Eisco de Fiomarcial 

 (no. 9), c. fr. Eecorded by Pitard and Proust from two localities 

 on Teneriffe, but only in the sterile state. 



Ancectangium compactum Schwaeg. Barranco del Eio, Guimar 

 (no, 24). — A. angustifolium Mitt, Ladera de Guimar (no. 34), c. fr. 



Orthotrichnm Sturmii Hornsch. Pinar, Cumbre above Cande- 

 laria, about 6000 ft. (no. 26), c. fr. Pinar de Guimar (no. 35), c. fr. 

 I have recorded this plant under the above name in deference to 

 Schiftner and others, as it is in all probabihty the same plant as 

 is already recorded from several localities, of one of which Schiff- 

 ner (Hedivigia, xli. p. 287) writes : " Die zweischichtigen Blatter 

 lassen keinen Zweifel iiber die Eichtigkeit der Bestimmung." 

 Dr. Salter's plants have the leaves in the whole of the upper part 

 bi-stratose, but the capsule, especially in no. 26, tapers at the base 

 into the seta entirely as in 0. rupestre. Unless 0. Sturmii is to 

 be separated from 0. rupestre on the ground of the bi-stratose 

 lamina alone (and intermediate stages even of this character are 

 frequent), it appears to me quite impossible to define any constant 

 concourse of characters to distinguish it from 0. rupestre. — 0. 

 rupestre Schleicli. On old escohon stem {Cytisus prolifer), Cumbre 

 de Candelaria (no. 37), c. fr., teste Cardot. k tall, arboreal form, 

 which is quite distinct from the plant above mentioned, and can- 

 not be separated from 0. rupestre. This species (apart from the 

 above 0. Sturmii) does not appear to have been recorded from the 

 Canaries, or, indeed, from the Atlantic Islands. 



Funaria hygrometrica Sibth. Barranco above Guimar (no. 10), 

 c. fr. 



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