KEY TO THE GENERA AND SPECIES OF BRITISH MOSSES. 133 
2 tts. ovate-lanc., papillose, obtuse or m. or 1. acute ............pet rope 
Ls. obovate-spathul., suddenly and shortly acumin., sm ooth .. Rise 
8 {16 papillose, nerve narrow, lamina distinct = > SPE x walis 
Ls sao f or nearly so, lamina n 4 
4{X erve thick, occupying all upper part of subula ............ crassinervis 
Nerve less defined, occupying only middle - i ae subula .....++.2+.-L0thit 
ANOMODON. 
1 Ls acuminate longifolius 
Pes chevae or apiculate 
alt Pl. robust; Is. entire, obtu viticulosus 
Pl. ignaers ls. grin chek SEKrul., At APCK .sresrcseeeeveees .attenuatus 
ATRICHUM. 
ii s. lingulate, undulate, cg ee 25 » wide 2 
Ls. wider, oblong-lanc., sc. undul., cells Over B5 Mh ..sseeceseseeee rispum 
g | Ls. r. obtuse, serrate near ce only caps. suberect .... vangustatum 
| Ls. acute, serrate throughout; caps. arcuate ......s.ssee00 undulatum 
AULACOM 
NIUM. 
1 {er under 1 inch; Is. serrate; a numerous ...androgynum 
Pl sei some = odia few or abse Z 
margin recurved}; cells ahs ia ereateteesserecere 
is ietioaanet margin usu. 2 e above...... alse citi cicada alee 
Ls. alg Pago cells 6—7 #; dioi COUS sssseesseeeeeeeeetntermedia 
afr . usu or 1. serrul. at apex; st. matted w. radicles ..... -palustre 
Ls. v. seat sen Biee -» entire; st. sc. radiculose ...............curgidum 
BARBULA. 
1 at e Ww. eer or jointed filaments on inner face 2 
Nerve without a) — 7 
hair-pointed, con 3 
aot not hair-pointed; n. ital: covered w. granular filaments......... 4 
3 LN w. 4 broad lamelle above; caps. cylindric............... lamellata 
N. gemmiferous above; Is. spathulate, v. papillose ............papillosa 
4{ls.0 btuse; caps. elliptic; ss rostrate; synoicous .........brevirostris 
= m. or l. pointed; dioico 5 
5 fed lip half- pias by cal.; perist. v. contorted .........stellata 
cal. covering lid only; perist. less twisted .............+ 6 
6 ea ago Devs. pale at ct WSs WOUBRG co sss cicec ia evesstes aloides 
Caps. erect red; ls. in -cucullate at tip ......... ambigua 
- Nerve sat in a hair; Is. usu. okra or spathulate ............0+ 6 
sg seceroge hair-points 16 
8 peristome not tubular (exe. canescens) 9 
PL nora perist. partly tubular; 1s. usu. dingy-green ...........+0+ 13 
9 vate- — denticul. at apex; 0. oblique ...... gitveest: suberecta 
(ts: ocbeh oblo: ong, entire; caps. erect 10 
10 ak a Brewin border, pale green ............ marginata 
ie eitous thicken: 11 
ll Leaf-margin onal iilecdpveusewes hee iter eaneeete eevee MUTAlS 
Margin oi seo = aighiip rector only 12 
12 oe cylindric; perist. t. free; 1s. w. green ante potas see. Vahliana 
a elliptic; perist. tubular for Zits length .«...... vesnesuessCQNEBCONS 
13 point alm. smooth; 4 of perist. compe monoicous ...levipila 
Hs gine 4 perist. tu tubular; dioicous OF SYNOICOUS..+++++0+0--14 
15 
Taller ; ls. ferruginous; cells 10—12 #; synoicous soseseseeneeDTINCEPS es 
