72 PATAGONIAN EXPEDITIONS : BOTANY. 



plex vel superne furcatus vel raro in ramulos paucos erectos divisus ; 

 folia sicca erecta, apice plus minusque arcuata vel rarissime subflexuosa, 

 comalia saepe subuncinata, humida erecta, fere stricta, usque ad 15 mm. 

 longa et basi (planefacta) 2 mm. lata, linearilanceolata, baud auriculata, 

 sensim longe subulate attenuata, subdecurrentia, marginibus apice sparsim 

 serrulatis, ceterum integerrimis, costa latissima, depressa, basi 0.45-0.50 

 mm. lata, subulam totam occupante, dorso dense papillosa ; cellulce alares 

 baud inflatae, aureo-flavae, indistincte limitatae, subrectangulae, cellulis 

 basalibus paulo breviores, parietibus aequaliter subincrassatis ; cellulae 

 basales subrectangulares, parietibus interrupte valde incrassatis ; stiperiores 

 subovales, rotundate quadratae vel rotundate rectangulares ; marginales 

 angustae, lineares ; cetera ignota. 



Dr. V. F. Brotherus has had the kindness to send me a specimen of a 

 moss, collected many years ago by Cunningham in the surroundings of 

 Sandy Point (Punta Arenas) on the Straits of Magellan. This plant, 

 agreeing exactly with the one above described, was determined as Campy- 

 lopus scaberrimus n. sp. According to my opinion it is, however, more 

 correct to refer it to the genus Dicranum than to the genus Campylopiis. 

 It contains, however, only a single character, which shows the place of the 

 plant to be amongst the Dicrana, namely the structure of the nerve. A 

 transverse section of the leaves a little above their base shows the nerve 

 to be composed of a middle row of wide cells, enclosed by some few rows 

 of very small ones, as is the case with Dicranum orthocomum (Besch.) C. 

 Miill., which also was previously placed in the genus Campylopus. 



Dr. Brotherus, as well as myself, having taken notice of the prelimi- 

 nary report of the mosses, brought home by the Belgian Antarctic Expedi- 

 tion and published by Dr. J. Cardot in "Revue Bryologique," 1900, sup- 

 posed the Dicranum scaberrimum to be identical with the Dicranum 

 laticostatum Card. This supposition, however, proved incorrect. Having 

 received the accurate description of the above-mentioned antarctic mosses, 

 given by Cardot in the scientific report of the Belgian Antarctic Expedi- 

 tion, it was found at once that the two mosses in question are not iden- 

 tical, and that the Dicranum scaberrimum was an undescribed species. 



It shows some characters of Dicranum laticostatum Card, as the broad, 

 depressed nerve, being papillous on the dorsal side. It clearly differs, 

 however, from that species in its longer and more robust stem, being 

 also tomentose more densely and higher up, in its larger and erect 



