142 KEY TO THE GENERA AND SPECIES OF BRITISH MOSSES. 
aftr small, dense, soft, dull-green ; perist. t. cribrose Serene ert 
Pl. larger, — tufted, coarser ; per. t. subentire... -apocarpa 
9 (pees absent; Is. ovate, see m. orl. re hair......000000+..anodon 
Perist. saa ls. obovate, w. alm. s TRAE Gepesi coveaverse — 
10 | Hyaline points v. short, lower - ahs ie 
agate w. longish Satnnoln il 
re] oe h crisped or twiste 12 
Ls. not ae marek med ie oto 13 
12 v. curled when dry; basal cells shortly rectangul. .........contorta 
Ls. spirally twisted; basal cells narrow, elongate........ erreves torquata 
Upper ls. long, ust. secund, ela een, usu. W. gemme...Hartmanni 
ae € blastic: belowt; lavahonts watend-<>- : elongata 
4{ ls. oblong- sone contracted to ong, Ve FongD RAI see -eds0: leucophea 
4iLs. lanceolate, m. or 1. t 15 
Ls basal ce las eae se. thickened, not sinuous ............ 16 
15 {Baal cells at cane or leaf long and narrow, incrassate, usu. m. eo - 
uous, often . at margin 
16 { Pl. r. ay pei Lee curved, or fruit unknown) 17 
Pi. in den 18 
i subsquarro os; tag ecurved, hair r. rough . pseemtaiees<: 3 Ste 
- narrow, patent, margin gi ne, hair- et smoot. Stirton 
18! Seta curved; ls. r. alls tee a gio to a hair 
Seta erect; Is. gradua 20 
19 (Caps striated; lid ae d; eile @ mitriform...iid..cvvereden pu ee 
C alm. smooth; lid blunt; cal, cucullate orbiculart 
20 Lid conic, obtu 21 
( Lid rostrate fas eucull.; lower cells short montana 
ai { Cal. mitrif.; caps. pale; Is. w. lower cells r. elongate ......... Doniana 
Cal. oie treat brownish; lower cells short .........sssseeseeeee Ungeri 
99 ion Seta n moist (Is. graduaHy acuminate) 23 
Seta erect tai Emer: nubilys or nearly SO)..+-.++. 27 
93 {Fair int v. 24 
Hair-point Me cg or slightly roughened only 25 
94 fs robust; caps. 8-furrowed; autoicous +++. Schultzit 
Pl. smaller; ¢ lm. smooth; dioicous ......... seeesess- Miihlenbeckit 
25 {Pr tall, oe margin revolute ; upper cells opaque ...... elatior 
mes yish-green; margin plane above ...... 26 
26 oe spirally twiste en dry, v. nartow! a alendor......:.0<6 Funalis 
Ls. se. twisted moth ae wider at base........+.++ veseseeees brtchophylla 
27 feretesiies lid rostrate; perist. t. broad, trifid.. ccoae sseveeseses commutata 
Aut lid rostellate; perist. t. narrow, bifid t 
GYMNOSTOMUM with GYROWEISSIA. 
i! St. v. short; Is. apy na obtuse, ie ee argins 2 
list. usu. _ longer near-lanc., m. or ]. acute or subacute ............ 3 
2 bp4 alm. ‘ditties aie a Mie in bh thet -green tufts... ow. tenuis 
Ls. crenulate; annulus v. narrow; in pale-green mats | ++ calearium 
Margin recurved at middle; upper cells larger, pellu 
Cells long at base, quadr. and oval above; Is. lane. ...... tariivotionn 
Cells all elongate te and pellucid; Is. narrower ...............commutatum 
(To be continued.) 
ee 
3 ve w. plane margin, oe hes te; upper cells minute, opaque...rupestre 
cid 4 
* oes 
