p “ • in. broad, with a rounded entire outer edge.
1 edicels sliort solitary erect, adnate to the upper part of the base
of the conceptacle. ^ Conceptacle oblong, horizontal, unbordered,
about 20 tomentose ; basal teeth distinct. Sori
Soc Bffi' a “ ' V' koum. in Bull.
c lo s e K l^ te this'i^Ses. ^
• Teiiore Prodr. FI. Neap. Suppl. i. 7 0 ; A. Br.
Ill Expl. Sc. Alger, t 38.^ JZ. Fabii Duiial hi Aim. Sc. Nat. ser. 2,
IX. llD , t. 13.—Middle-sized, subterrestrial or aquatic, the latter
w *^'le t io le 1 111. to 1 ft. ; leaflets deltoid, usually ®t h''i'n'ill®y osifl kiyk,e il-eAav eins,.
long; outer edge rather rounded, entire. Conceptacles sessile,
crowded m two regular imbricating rows on the rhizome, globose-
obovoid 4 111. loug, silky, unhordered, horizontal, with the pedicel
abouriO° *®®*^' obscure. Sori
Hab. Jlediterranean region; South Prance, Italy, Morocco, Algeria.
18. M. STBIGOSA Willd. Sp. V. 5 3 9 .-M id d le -s iz ed , subterrestrial
01 aquatic, the former tufted, the latter short-creeping. Petiole
3 111. leaflets deltoid, obscurely silky or glabrescent, f - 4 in. Ion";
outer e d p slightly rounded, entire. Conceptacles sessile, crowded,
oblong in long, with the pedicel adnate to the upper part of the
base, slightly silky when mature, not bordered, not arranged on the
S o ir S H o “ ''sg'kar imbricating rows; basal teeth obscure.
w i t h ^ f f i c h S 3 i M.pubescens,
nf Thomi. & Sebum. Besk. Guiii. 4G1. — Habit
l o n ? « r r ' f “ - about an inch
Ion glabrous above, strigillose beneath ; outer edge entire. Con-
S e n t o s " °* auise-seed, solitary, subsessile, persistently
Hab. Guinea, Thouning. Known to me only from an incomplete desoriptiou.
■ ^k/uBicA A. Br. in Berl. Monatber. 18G3, 482. — Middle-
W l ? f l e r i 1 i j f ' f ‘-“ ^epkig, glabrous. Petiole 1 - U in.
tthhee coomnioceepntaSo^lef , hnalVl y 7tu’r ning bZla®ck’-”'.'’ Conceptacle neafrkley sbqausea reof
. 16. M. HIESUTA E. Br. Prodr. Austral. 167. — Laro-e or middle-
sized, aquatic or subterrestrial. Petiole 1 -4 in. Ion" in the
subteiTestnal form; leaflets 4 - i in. long, s i lk y outer border
t? ? h e upp2uppei pmaiitr o’ ff 1t1h®e *'b?'a®se of the c'o’®nc"^e ptacle. ®'-C®o®nf’ceptacle
horizontal, obliquely round-oblong, the dorsal suture nearly straight,
l-6 th to ]-5 th in. long, persistently tomentose, nnbordered; basal
teeth obscure. Sori about 15.
Hab. North Australia, Queensland, and N. S. Wales, il/. exarata A. Br. in
Berl. Monatber. 1870, 782, is a wide-trailing terrestrial form, with leaves and
fruits in dense tufts at the distant nodes, and small silky leaflets of firm texture.
17. M. viLLosA Kaulf. Enum. F il. 272.— Middle-sized or large,
subterrestrial or aquatic, with deltoid leaflets, with rounded entire
outer border, thinly silky, except iu the aquatic. Pedicel short,
solitary, erect, adnate to the upper part of the base of the conceptacle.
Conceptacle round-obloiig, persistently silky, nnbordered,
about l-5 th in. long, one-fifth longer than broad; basal teeth prominent,
the upper one hooked, the two separated by a narrow acute
sinus. Sori about 15.
Hab. Sandwich Islands. Very near il/. vestita.
18. M. VESTITA Hook. & Grev. Ic. F il. t. 159. — Subterrestrial,
tufted or wide-creeping. Petiole 1 -6 in. long ; leaflets deltoid,
i ~ i ki. long, thinly clothed with adpressed brown hairs ; outer
edge rounded and entire. Pedicels short, solitary, erect, adnate to
the upper part of the base of the conceptacle. Conceptacles horizontal,
ronnd-oblong, persistently tomentose, unbordered, l-6 th to
l-5 th in. long ; basal teeth prominent. Sori about 15.
Var. 21. mucronata A. Br. iu Sillim. Journ. ser. 2, iii. 55.—
Leaflets and conceptacles less silky. Pedicels short. 21. hrevipes
Nutt.
Var. 21. uncinata A. Br. in Flora, 1889, 300.— More robust.
Pedicel often longer than the conceptacle, of which the basal teeth
are very distinct, the upper one hooked. Sori 2 0 -2 4 .
Hab. British Columbia, California and Western United States down to
Texas, New Mexico, and Mexico.
19. M. MEXIOANA A. Br. in Berl. Monatber. 1870, 7 4 7 .— Middle-
sized, subterrestrial, with leaves aud pedicels clustered at the contiguous
nodes. Petiole 1 -4 in. ; leaflets deltoid, slightly silky,
f - 4 in. long ; outer edge entire, a little rounded. Pedicels very
short, ascending or deflexed, adnate to the upper part of the base
of the conceptacle. Conceptacle rouiid-obloiig, horizontal, 4 in-
long, persistently tomentose, nnbordered; basal teeth none or very
obscure. Sori 1 6 -1 8 .
Hab. In Mexico, near Taliseo, Beechey ! San Luis Potosi, Parry d-Palmer
1010 !
20. M. E r n e s t i a . Br. in Berl. Monatber. 1870, 746. 21. striata
Ernst, lion M e tt.— Aquatic or subterrestrial, middle-sized, with
crowded or widely separated nodes. Petiole 4 ki. ; leaflets
deltoid, glabrous or obscurely silky, l-1 2 th to f in . long and broad;
outer edge rounded, entire. Pedicels solitary, very short, erect or
deflexed, adnate to the upper part of the base of the conceptacle.
Conceptacle horizontal round-oblong, l-6 th in. long, persistently
tomentose ; basal teeth none, or very obscure. Sori 15 -2 0 .
Hab. Caracas, F r n s t!