93 
Catharinea undulata, Web. et Mohr. Common, and fruiting 
freely in all the drier places, as in the Rockery, where it forms 
luxuriant patches 
Polytrichum aloides, Hedw. In several places along the 
boundary ditch by the Old Deer b between the Lion Gate 
and Queen's Cottage ; fruit no 
P. piliferum, Schreb. Not uncommon in dry places ; abundant 
along the boundary ditch with the last species ; sandy banks 
near the lake, &c.; occasionally fruiting. 
P. juniperinum, Wil/d. Abundant in dry places throughout the 
Gardens ; frequently fruiting. 
P. formosum, Hedw. Fairly common in sandy pm in the 
open, and also under trees; fruiting in the Arboretu 
A curious Polytrichum, uaria in some characters between 
P. formosum and. P. graci icks, occurs in a few places along the 
boundary ditch by the Old Deer Park. In this form the leaf-base, 
ra 
broad. Occasionally, also, the pi ant shows a further approach 
towards gracile, as some of the leaves have rather a wide limb in 
the upper part of the leaf, piel féoqnently the lamell are only 
about 40 in number 
Both Mr. W. E. Nicholson and Mr. Dixon at first referred the 
plant t ars gracile, Dicks, relying especially on the short wide 
basal sroclante 1 have since heard from Mr. Dixon, however, 
that Mr. Bagnall, to whom specimens of the Kew plant were 
submitted, thinks that it should be referred to A w moun, and 
that Mr. Dixon himself is now inclined to agree with & 
that it is nearer that species than P. gracile, slilioagli still thinking 
that there isan approach to the form of areolation of the lat 
Only barren plants of this form, which is certainly native, due éd 
far been found. 
Pleuridium axillare, Lindb. (c. fr). In the Bamboo Garden and 
near the Pumping Station. Occurs nuc in pots in the 
Glass-houses, where the leaf-cells become very lax 
P. subulatum, Rabenh. (c. fr). Not uncommon on sandy 
ground ; about the hr ke and on the islands; Bamboo Garden ; 
Tulip Tree viel LE. 
P. alternifolium, Rabenh. (c.fr.). A. Bare places near the lake; 
Rose Garden, on earth adhering to stumps. 
Ceratodon yore. Brid. Abundant and common in fruit 
throughout th 
Dicranella heteromalla, bens: Abundant and fruiting in all 
the drier places, 
