Pottia recta M i t t . Ann. nat. hist. 2 ser. viii, 311 (1851). L in d b . in Oefv. vet ak. toerh, xx,
410 (1863) i de Tort. 218 (1864).
Bryetia recta B e r k . Handb. br. m. 300 {1863).
Tortula recta L in d b . M u s c , s c a n d , 21 {187g).
Paroicous ; plants very dwarf, densely gregarious, dull green or rufescent,
Le a v e s crowded, e recto-patent, papillose above, oblongo-
lanceolate, concave, th e margins revolute, nerve excurrent ; cells at
base narrowly rectangular, above hexagonal. Caps, erect, subglobose,
apiculate, nitidulous, reddish-orange, often 2— 3 in one perichætium,
the lid minute, with a simple annulus, not separating ; cal. yellow-brown,
the beak rough with minute papillæ, b la ck at apex ; spores pale, rough.
H.ab.— F ields on c la y and ca lcareous soil, and banks b y roadsides ; not
common. F r . 2— 3.
Sussex and Kent, frequent. Plymouth [Holmes 1867) ! ! Llangollen [Kent 1865) ! ! Beaumaris
[Hunt) ! ! Manchester and Pontefract [Hunt 1867) ! ! Levens [Barnes 1869) ! !
Todmorden. Dublin [Moore). Near York [Spruce).
2. POTTIA BRYOIDES [Dicks.) Mitt.
Autoicous ; leaves pa tent, a c c re scen t upward, oblongo-lanceolate,
reflexed at margin, aristate with th e excurrent nerve. Caps,
e lliptic-ovate, subobliquely ros trate ; lid persistent ; ca l. smooth.
(T. X X V I I I , C.)
S y n .— Phascum bryoides D i c k s . Crypt, fasc. IV, 3, t. 10, f. 3 (1801). Sm. FI. brit. iii, 1154
(1804) ; Eng. Bot. t. 1280. W e e . M o h r Bot. Tasch. 65 (1807). R o e h l . Ann. Wett.
ges. 1, 193 (1809) ; Deutsch fl. hi, 34 (1813). S c h k u h r Deutsch kr. gew P. 2 6 t 2
(1810). S c h w a e g . Snppl. I , P. I, 8, t. 2 (1811). V o i t M u s c . herb. 1 (1812). H o o k
T .a y l . musc. br. 8, t. 5 (1818). S c h u l t z Suppl. Fl. Starg. 63 (1819). F u n c k Moost 3
t. I (1S21). G r a y Nat. arr. br. pl. i, 712 (1821). N e e s H o r n s c h . Bry. germ, i, 76, t 7,
f. 21 (1823). H u e b e n . M u s c . germ. 17 (1833). H o o k . Br. fl. ¡¡,4 {1833). B r . S ch im p .
Bry. eur. fasc. i , p. 1 1 . t. 5 (1837) i « fasc. 43, t. 2. D e N o t . Syllab. 301 (1838) ; Epil.
bn. Ital. 734 (1869). R a b e n h . Deutsch. kr. fl. Ü, S. 3, 83 (1848). C. M u e l l . Synops.
1, 28 {1849). W i l s . Bry. brit, 33, t. 5 (1855). S c h im p . Synops. 18 (i860). B e r k . Handb
br. m. 300, t. 24, fig. 8 (1863). J a e g . Ber. der St, Gall. nat. ges. 1869, p. 80. H o b k .
Syn. br. m. 29 {1873). H u s n . M o u s s . nord-ouest. 34 (1873). J u r a t z . Laubm. oester.-
ung. 90 (1882). L e s q . J am e s Mosses N. Amer. 42 (1884).
Phascum gymnostomoldes B r id . Sp. musc. I, 7 (1806) ; Mant. 7 (i8ig) ; Bry. univ. i, 48
(1826).
Phase, graniferum W a h l. In Vet. akad. nya handl. xxvii, 131, t. 4, f. 3 (1806).
Phase, eioiigatum S c h u l t z Fi. starg. 273 (1806).
Phase, pusilium S c h l e i c h .
Pottia bryoides M i t t . Ann. nat. hist. 2 ser. viii, 311 (1851). L in d b . in Oefv. vet. ak. foer.
handl. xx, 40g (1863) ; de Tort. 221 (1864). M i l d e Bry. siles. 98 (i86g).
Tortula bryoides L in d b . M u s c . scand. 21 (1879).
Autoicous ; gregarious, casspitulose, olivaceous green, -J— J in, high,
simple or sparingly branched. L ow e r leaves v ery small, patent, remote,
ovato-lanc. upper crowded in an e re c t coma, much la rge r, ovate and
oblongo-lanc. cuspidate with the solid excurrent nerve, concav e , reflexed
a t margin ; a reolat. a t base oblongo-hexag. hyaline, at apex rounded-
hexag. chlorophyllose. Caps, on a stra ight reddish seta, sometimes
only ju s t emerging from the leaves, ovate or ovato-elliptic, attenuated in
an oblique rostellum, fu scou s; cal. cucullate, rea ching to middle of
caps, lid conical paler not sepa rating ; spores fuscous, nearly smooth.
Male infl. gemmiform, in axils o f upper leaves, bracts broadly ovate,
acuminate, outer with an excurrent nerve, vanishing in the inner ones.
H ab.— Fallow fields and banks ; rare. Fr. i— 3.
Near Croydon [Dickson). Downs at Piecombe, Lewes and Devil’s Dyke [Borrer). Coast
at Aldrington and Cliff E. of Brighton [Mitten). Gateshead Fell [Thornhill). Map-
perley hills, Darlington [Backhouse). Ganthorpe, Yorks. [Sprtice 1841). Bury St.
Edmunds [Eagle). Norwich! Nottingham [Valentine). Buxton [Dr. M/ooii 1865) !
Iffley, Oxford [Boswell T.2,6i)\ ! Woolsonbury hill (Davies 1867) ! ! Dovedaie (Frase?*
1866) I ! Elie, Fife [Howie 1867) ! Whitbarrow, Lyth and Levens Park [Barnes
1872) ! ! Arnside Towers, on old ant hills [Barnes 1872) ! Howth [Orr).
Var. ß . Thornhillii (Wils.).
Leaves patulous, spathulato-lanceolate, subreflexed, margins plane,
nerve subexcurrent; caps, elliptic, rostrate, pedicel elongated.
S y n .— Phasctim bryoides var. Thornhillii W i l s . B r y . b r it . 33.
H ab.— Old stubble fields near Newcastle (Thornhill 1841)!
Pottia bryoides has a peculiar looking capsule, much resembling that of
Voitia hyperhorea, but with a distinct persistent lid. Several varieties are
enumerated which appear to me to be forms passing into each other, thus Mr.
Davies’ specimens are midway between the ordinary state and Var. piliferum,
but the Var. Thornhillii is very different and Mr. Wilson suggests may be a
distinct species.
I
3. POTTIA h e im i i (Heiw.) Fuentr.
Autoicous ; talle r ; leaves ovate oblong, acuminate, serrate at
apex, la xly areolate, nerve vanishing or continuous ; caps, truncate
obovate, lid obliquely rostrate, systylious. (T. X X V I I I , D.)
S y n .— Gymnostomum Heimii H e d w . Stirp. cr. i, 80, t. 30 (1787) ; Sp. musc. 32 (1801). R o t h
Fl. germ, i, 653 (1788), et iii, P. I, 123. H o f f m . Deutsch. fl. ii, 28 (1795). B r id .
Musc. rec. II, P. I, 4X (179S), Sp. musc. I, 32 (1806), Mant. 15 (i8ig) ; Bry. univ. i, 71
(18261. R o e h l . Moosg. deutsch. 77 (1800) ; Deutsch. fl. iii, 39. S m . Fl. br. iii, 1162
(1804) ; Eng. Bot. t. 1951. T u r n . Musc. hib. g (1804). P. B e a u v . Prodr. 59 (1805).
W e b . M o h r Bot. Tasch. 87 (1807). S c h k u h r Deutsch. kr. gew. P. 2, p. 24, t. 11
(1810). S c h w a e g . Suppl. I, P. I, 21 (1811). H o o k . T a y l . Musc. br. 12, t. 7 (1818).
F u n k Moost. 6, t. 4 (1*821). G r a y Nat. arr. hr. pl. i, 715 (1851). H o o k . Fl. Scot. P.
II, 123 (1821), Br. fl. ii, 9 (1833). H u e b e n . M u s c . germ. 42 (1833). M a c k . Fl. hib. P.
2, 10 (1836).
Bryum Heimii D i c k s . Crypt, fasc. II, 4 {1790). G m e l . Syst. Nat. ii, 1333 (1791). L a ic h .
Pl. eur. 482 (1794). W i t h . Bot. arr. br. veg. 3 ed. iii, 815 {1796). H u l l . Br. fl. P. 2,
257 {1799)-
Gymnost. obtusum (haud H e d w .) T u r n . op. c. 9, (excl. syn.) t. i, fig. g-i. Eng. Bot. t.
1407. B r id . Bry. un. i, 72.
Gymnosf. systylium F u n k MSS.
Gymnost. affine N e e s H o r n s c h . Bry. germ, i, 140, t. 9, f. 9 (1823). B r id . Bry. un. i. 72.
W a h l e n b . Fl. suec. 772. H u e b e n . M u s c . germ. 41.
Pottia Heimii F u e r n r . in Flora xii, P. II, Ergänz. 10 (182g). B r u c h S c h l m p . Bry. euv.
■ fase. 18— 20, p. 12, t. 7 (1843). R a b e n h . Deutsch. kr. fl. ii, s. 3, 97 (1848). C. M u e l l .
Synops. i, 551 {1849). W i l s . Bry. brit. 96, t. 7 (1855). S c h im p . Synops. 125 (1S60),
2 ed. 155 (1876). B e r k . Handb, br. m. 271, t. 23, f. 3 {1863). M i l d e Bry. siles. 97