funda ante acumen canaiiculatum plcnimqnc'abrupta, margine
ubique erecto ct argute serrulato, hic illic undulato,
nervis binis tenuibus divergentibus dimidiatis, cellulis an-
irustissiinis densissimis scariosis subconflatis laevissimis
lutesccntibus, basi fuscis, alaribus ad alas basilares semel
circinnato-involiitas paucis incrassatis intense fuscis;
perich. e basi latissime vaginante elongate laxe ct incras-
satc reticulata fusca obsoletiuervi in acumen longum valde
reflexum scariose areolatum attenuata, denticulata; theca
in ped. breviuscuìo rubro laevi flexuoso in c lin a ta , e collo
brevi oblonga aurantiaca nitida, sicca s triata, late annulata,
opere, conico obtuso apiculato brevi oblUpio ; perist.
d. ext. robusti lutei, apice nodose serrulati, int. pallidissimi
hiantes laeves, ciliis tenerrimis binis nodosis brevioribus.
Brid. II. p. 506. — Schw. Siippl. III. 1. I. t. 225. — II.
t r iq u e t rum var. Weh. et Mohr. Bot. Tasclih. p. 354. — H. erectum
Haddi, fide Ue Notaris. |,
H. inte r ru p tum Brid. Sp. Muse. 11. p. 194 v. H. b re v iro s trum
fi. in te r ru p tum ej. 11. p. 508 ex iiisula Bourbonis a C o u i in e r s o u
relatum quoad specimina Hb. Bridelii sterilia Jiuc pertiuet; an fru-
ctus vero adhuc ignotus d iv e r so s, latet.
Patria. Praetor Scandinaviam Norveglcam et Lap-
ponicam per tolam Europam in umbrosis sylvaticis, e planitie
usque in zonam subalpinam, ad terram atque radices
arborum, haud rarum, sed parcius fertile. In Ilercynia
detexit El i r l i a r t oculatissimus. — Vere.
Ab H. tri(/uetro proximo caracteribus datis toto coclo
diffcrt.
b. Fol ia u ninè rv ia.
420. H . s t r i a tum Scbreb. (Spie. Fl. Lips. 1771 ! p.
91.); dioicum; H. brevirostro simillimum, sed caulis filis
radical ae fo r mibus desiitutus; folia siccitate quoque magis
squarrosa, e basi latissime cordato - ovata, alis impressis
valde convexis praeditá late lanceolato-acuminata, haud
sinuata, ruguloso-plicata, caviuscula, margine convexo
serrulato, nerv'o unico canaliculato ultramedio, cellulis
minus conflatis ubupie pallidis, alaribus quadratis pellucidis;
perieli, ubique pellucide laxe reticulata, obsoletinervia;
tlieca in ped. laevi elongato Iongiuscuie cylindraceo-
oblonga arcuata, late annulata, opere, conico longissime
oblique rostrato; perist. M. brevirostri, internum ciliis
2 — 3 subrugulosis.
Hdw. Muse. Fr. IV. p. 32. t. 13. — l i . lony iro s trum Klirh.
Pl. Kxs. 1787! No. 75. — H. unguicula tum La Tour. Cblor. Lugd.
33 ct Schleicb. in scbedi.s. — U. adianthum Ncck. Meth. Muse. p.
181. — il. elas ticum llrid. Sp. Muse. 11. n. 256. — 11. ru tabulum
fi. cuspidatum Web. Spicil. FI. Giitt. p. 92. — 11. vulgäre , deiitatum,
operculis cuspidatis. Dill. Muse. p. 297. t. 38. f. 30. B.
Patria. Per totam Europam, extra hyperboream, in
sylvaticis umbrosis ad terram arborumque radices, c planitie
usque ad zonam montosam. — Primo vere.
421. M. O a k e s i i Sulliv. (in Gray. Manual of Bot. p.
673.); dioicum; decumbens flexile viridi-lutescens nitens
laxe cespitosum; caulis prostratus, ramis remotis longiusculis
iterum pinnatis, v. simplicibus, al parum divisis,
flexuosis patentissimis strictiusculis compressiusculis
attenuatis pinncdus, filis maxime raniosissimis radiculae-
formibus obtectus; folia caulina erecto-patentia laxe imbricata,
late ovata longius acuminata, concava, margine
reflexo, supra basin inaequaliter ciliaio - dentata, plus
minus plicato-rugulosa, nervo unico ad medium evanido,
cellulis angustissimis scariosis linearibus, basi fuscis, alaribus
vix ullis fuscis; pericb. numerosa squarroso-reflexa,
A'aginantia enervia, superiora longe capillari-acuminata,
ad apicem tantum denticulata; theca in ped. e/o«(/frfo laevi
tenui, apice valde arcuato ovaia, gibboso-inaequalis, ventricosa,
valde pachydermis, deorsum spectans, vix annulata,
opere, conico brcA'i-rostellato ; perist. d. ext. anguste
lanceolati dense articulati, int. solidi, ciliolis binis
capillaribus nodosis interjectis.
Cum ic. in Mem. of the Americ. Acad. of Arts and Sc. Vol. IV.
NeAV, Series 1849. p. 173. t. 5.
Patria. America scptentrionalis, ad pedem tract.
White Mountains Novae Angliae: Oa k e s beatus legit.
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