Conklin—-Preliminary Report on a Collection of Hepaticae. 999 
dry. Scapania irriguaLophozia porphyroleuca > Cephalozia 
lunulaefolia, Riccardia latifrons and Lepidozia reptans are as¬ 
sociated hepaties. 
The next year it was found in quantity at South Superior. 
Some ten years previously a street had been laid out and ditched 
through a sphagnum balsam swamp, where cranberries and blue¬ 
berries still grew and bore fruit. During the summer of 19,11 
the shady side of the cut peat of this ditch was lined with 
Mylia anomala, freely gemmiperous but lacking perianth. 
Ceph. pleniceps and Ceph . lumdaefolia were associated hepat- 
ics, and Drosera rotundifolia flowered freely among the sphag¬ 
num at the bottom of the ditch. 
36. Lophocolea heterophylla (Schrad.) Durmot. 
No. 904 Chester Creek, Duluth, Minn., July 20, 1909. 
No. 630 Knife River, Minn, Aug. 1, 1909. 
No. 683 Carlton, Minn., Sept. 26, 1909. 
No. 379 Copper Creek, Douglas Co., Wis., Aug. 29, 1909. 
No. 760 Superior, Wis., July 18, 1909. 
No. 1174 Lutsen, Cook Co., Minn., Sept. 1911. 
37. Lophocolea minor Nees. 
No. 655 Carlton, Minn., Sept. 26. 
No. 673 Black River, Douglas Co., Wis., Oct. 5, 1909. 
No. 519 French River, Minn., Oct. 5, 1TF09. 
No. 1192 Lutsen, Cook Co., Minn., Sept. 1911. 
Eightly named, Lophocolea heterophylla does not belie its 
appellation in the District. It is the most variable of all the 
species observed. Side by side the beginner can not believe that 
the large leaved fruiting plant growing on wet ground can be the 
same species, as the small bifid leaved, cephalozia-like plant, 
spreading out its delicate tracery on old bare wood. Learning 
to recognize the variability of this species, is one of the first real 
troubles to overcome by the student, for it is exceedingly com¬ 
mon and effects a great variety of habitat. 
Lophocolea minor confines itself to rocks along streams, 
usually of the higher altitudes, and is rather common in such 
places. It has been found along all the streams which cut the 
ranges. 
