MUSCI AND НЕРАТІСЖ RECORDED FROM JAPAN, 189 
Gathered by Maries and at Kintoki by Bisset. 
Habitus omnino Thwidii tamariscini, statura autem minor, ramis ramulisque graci- 
lioribus. 
Different from T. japonicum in the short points of its cauline leaves, and also from 
Т. delicatulum. 
Great difficulty was always experienced in understanding the distinctions between 
T. tamariscinum, Т. delicatulum, and Т. recognitum until Lindberg pointed out the 
difference in the formation of the point of the apical cell of the ramuline leaves; that 
this is not understood in America, as is mentioned in the ‘Manual of N. American 
Mosses,’ of Lesquereux and James (1884), ceases to be surprising when all the supposed 
specimens from America tried by Lindberg’s character are found to have their apical 
cells many-pointed, and are thus reduced to 7. delicatulum, which may be the American 
representative of the European 7. tamariscinum. 
188. THUIDIUM CYMBIFOLIUM, Dozy et Molk. Bry. Jav. ii. t. 221, and also 
189. T. TAMARISCINUM, Bruch et Schimp., are both recorded from Japan by Sande- 
Lacoste as gathered by /о Keiske and Siebold, and Thunberg has 
190. T. DELICATULUM, Bruch et Schimp., Hypnum delicatulum, Hedw., collected by 
Keempfer. | 
Sect. Zetracladium. 
Caules continui, ramis tetrastichis. 
191. Т. MoLKENBOERII, Sande-Lacoste in Мід. Ann. Mus. Bot. Lugd. Bat. ii. 298, t. 2. 
Jigoku-gawa, Nikko, Bisset. 
The perfectly complete state of this species differs slightly from the splendid figure in 
having its lateral branches less flexuose ; in all other particulars Mr. Bisset's specimens 
agree, and show this elegant Moss to have stems from six to nine inches long, with short 
lateral branches, so regularly placed as to give them a breadth of about half an inch 
throughout. Тһе arrangement of the lateral branches in two planes on each side of the 
stem, so that they are in four ranks, is à character nof obvious in dried and pressed 
specimens, but conspicuous when their natural position is restored by maceration. Тһе 
same arrangement is found in the noble T. Hookeri, Mitt. ( Leskea Hookeri, Mitt. in Journ. 
Linn. Soc., Bot. iii. Suppl. 132); T. Brandisii, Jaeger (Hypnum Brandisii, C. Muell. in 
Rev. Bry. (1878), 63), a similar but rather smaller species ; 7. Blandovii, Mitt. (Hypnum 
Blandovii, Web. & Mohr); 7. decipiens, De Not.; and T. abietinum, Bruch et Schimp. 
(Hypnum abietinum, Linn.). Іп all these, besides the difference in the disposition of the 
branches, there is the difference in habit, the stems being continued indefinitely without 
interruptions or becoming arcuate and stoloniform, as is so conspicuously the habit of 
T. tamariscinum. | 
There is to all appearance another species which has been overlooked or confused— 
T. QUADRIFARIUM, foliis caulinis illis 7. recogniti similibus, nervo infra apicem evane- 
scente, rameis latioribus, pericheetialibus integerrimis. Collected in Canada by Prof. 
Macoun. Fertile stems were distributed by Wilson as American examples of the fruit 
