﻿370 BEPORT OF DEPARTMENT OF BOTANY, BRIT. MUS., 1898. 



Pleuridium altemifolium Kaulf. Old sand-pits, North wood; 

 meadows between Euislip Eeservoir and Eastcote. 



Pottia intermedia Turn. Downs, Harefield. 



Diihimodnn luriJux Hornsch. Chalk pits, Harefield. — D. tfexi- 

 folius H. & T. p Eeservoir. 



Barbula cqlindrka Tayl. and B. vinealis Brid. Frequent. 



Z>/</odon t ifidimmus var. rvpestru Lindb. Ruislip Woods. 



oVthotnchum Lyellii Hook. Park Wood, Swakeleys; Uxbridge. 



Webera carnea L. Margin of Swakeleys' Lake. 



Bryum pendulum Hornsch. Old sand-pits, Northwood. — B. 

 eryikrocarpum Schw. Common. — B. Vonianum Gray. Sandy 

 lank, in lane by Highway Farm, barren; Mr. J. E. Bagnall 

 also thinks it Ikmianum. — B. turUnatum Hodw. < 

 between Denham and Harefield Moor Locks, always barren. I am 

 indebted to Mr. H. Boawell for its determination. — B. anjenieum 

 var. lanalum P. Beau?. Frequent about Uxbridge. 



Thuidium recoqnitum Hedw. Chalk downs, Harefield. 



Eurhynvhium abbreviation Schpr. Harefield. 



Ambhixteniiun irriamun Wils. Tumbling Bay, near Jack's Lock. 

 Cana vails near Ruislip R servoir, &c. — A. radical e P. Beauv. 

 By Swakeleys' Lake, Ickenham, &c. 



Hepatic*. 



Lejeunia serpyliifoiia Dicks. Lane by Jack's Lock. 



Porella platyphylla L. Copses about Uxbridge and Harefield. 



Cephaiozia bicuspidata L. Frequent. — C. diraricuta Sm. Park 

 Wood, Uxbridge Common. 



Scapania nemorosa L. Uxbridge, Euislip Woods, &c. 



Lophocnlea cuspidata Limp. Old sand-pits, Northwood. 



Chiloscyphm polyanthus L. Side of water-courses, Ruislip 

 Woods. 



Junqermannia pumila With. Harefield Common. — J. spharo- 

 carpa Hook. Harefield Common. 



Nardia Scalaris Schrad. Euislip Woods. 

 Lumdaria vulgaris Mich. Frequent. 



REPORT OF DEPARTMENT OF BOTANY, BRITISH MUSEUM, 1893. 

 By William Carruthers, F.E.S. 



The principal additions to the Herbarium during the year have 

 been the great collection of Diatomaceas formed by M. Julius Deby, 

 and containing nearly 30,000 named slides, and the herbarium of 

 the late Mr. Jenner, containing over 6000 specimens of Alg£e. 



The transverse section of the Wellingtonia (Sequoia yigantea) 

 was received from California. It has a diameter of over 15ft., and 

 its annual rings show that it had lived for 1335 years. It is being 

 prepared for exhibition in the Great Hall. 



The additions to the collections by presentation have consisted 

 of 4087 plants from Malaya, presented by H. N. Eidley, Esq. ; 472 



