(118 ) 
Grimmia canescens (Timm.)C. M. (facomitrium canes- 
cens Brid.) Sheep Camp, Dyea Creek and Lake Linde- 
man. Specimens sometimes blackish throughout. The 
alar cells, more or less hyaline and somewhat inflated-hex- 
agonal, in several rows, seem always to distinguish this plant 
(608). 
Grimmia hypnotdes (L.) Lindb. (Racomitrium lanugi- 
nosum Brid.) Lake Lindeman (607). 
Hledwigia albicans (Web.) Lind. (HA. ciliata Ehrh.) 
Common about Dawson in fine fruiting tufts with stems up 
to 8 cm. long, also collected at Lake Bennett (610). 
Amphidium Lapponicum (Hedw.) Schimp. (Amphort- 
dium La pponicum (Hedw.) Schimp.) Lake Lindeman and 
Lake Marsh (611). 
Wetssia Drummondit (Hook. & Grev.) Lind. (Ulota 
Drummondit Brid.) On bark of Alnus at Sheep Camp, 
Dyea Creek (612). 
Weissta Bruchid (Hornsch.) Lindb. (Ulota Bruchit 
Hornsch.) On rock at Sheep Camp and Lake Lindeman 
(613). 
Weissia ulophylla intermedia (Schimp.) Braithw. (UJlota 
crispa intermedia (Schimp.) Dixon.) Sheep Camp. On 
Populus and Alnus (614). 
Weissta phyllantha (Brid.) Lindb. (Ulota phyllantha 
Brid.) Skagway, Alaska. On rock just above tide-water. 
The plants are stout and dark colored, bearing dense clusters 
of gemmae on both sides of the costa near apex (615). 
Orthotrichum anomalum Hedw. Dawson. In fine fruit 
June 29, on rock. Also collected at Skagway (616). 
Orthotrichum Macounizz Aust. Dawson. On rock. I 
refer specimens to this species with a seta about twice the 
length of the cylindrical capsule, which is at first smooth but 
may finally become ribbed throughout, with teeth regular and 
often united to apex and stout cilia (of a double row of cells) 
often nearly as long as the teeth. The characters pointed 
out by Austin as separating this species from Azugzanum are 
not apparently very constant (617). 
