HYPNOIDEAE. HYPNUM. 461 
dis; perich. ubique pellucide laxe reticulata, obsoletiner- 
via; theca in ped. laevi elongato longiuscule cylindraceo- 
oblonga arcuata, late annulata, operc. conico longissime 
oblique rostrato; perist. H. brevirostri, internum ciliis 
2—3 subrugulosis. í 
Hdw. Musc. Fr. IV. p. 32. t. 13. — H. longirostrum Ehrh. 
Pl. Exs. 1787! No. 75. — H. unguiculatum La Tour. Chlor. Lugd. 
33 et Schleich. in schedis. — H. adianthum Neck. Meth. Musc. p. 
181. — H. elasticum Brid. Sp. Musc. II. n. 256. — H. rutabulum 
B. cuspidatum Web. Spicil. Fl; Gött. p. 92. — H. vulgare, denta- 
tum, operculis cuspidatis. Dill. Musc. p. 297. t. 38. f. 30. B. 
Patria. Per totam Europam, extra hyperboream, in 
sylvaticis umbrosis ad terram arborumque radices, e pla- 
nitie usgue ad zonam montosam. — Primo vere. 
421. H. Oakesii Sulliv. (in Gray. Manual of Bot. p. 
673.); dioicum ; decumbens flexile viridi- lutescens nitens 
laxe cespitosum; caulis prostratus, ramis remotis lon- 
giuseulis iterum pinnatis, v. simplicibus, v. parum divi- 
sis, flexuosis patentissimis sirictiusculis compressiusculis 
attenuatis pinnatus, filis maxime ramosissimis radiculae- 
formibus obtectus;-folia caulina erecto- patentia laxe im- 
bricata, late ovata longius acuminata, concava, margine 
reflexo, supra basin inaequaliter ciliato - dentata, plus 
minus plicato-rugulosa, nervo unico ad medium evanido, 
cellulis angustissimis scariosis linearibus, basi fuscis, ala- 
ribus vix ullis fuscis; perich. numerosa squarroso - reflexa, 
vaginantia enervia, superiora longe capillari - acuminata, 
ad apicem tantum denticulata; theca in ped. elongato laevi 
tenui, apice valde arcuato ovata , gibboso - inaequalis , ven- 
tricosa , valde pachydermis , deorsum spectans, vix an- 
nulata, operc. conico brevi- rostellato; perist. d. ext. an- 
guste lanceolati dense articulati, int. solidi, ciliolis binis 
capillaribus nodosis interjectis. 
Cum ic. in Mem, of the Americ. Acad, of Arts aud Sc. Vol. IV, 
New. Series 1849. p. 173. t. 5. 
Patria. America septentrionalis, ad pedem tract. 
White Mountains Novae Angliae: Oakes beatus legit. 
