626 STEGOCARPI. ACROCARPI. TRICHOSTOMUM. 
longo- linearia , obtusiuscula , canaliculata, marginibus in- 
ferne recurvis, fortiter serratis, nervo apicem subattin- 
gente valido praedita, sicca tortilia; perich. conformia; 
theca in ped. longiusculo laete purpureo erecta angusta 
teres, lenissime curvula, operc. conico acuto multoties 
breviori; perist. d. 32 per paria approximati filiformi - 
nodulosi, ad apicem usque liberi, in uno alterove pari, 
trabeculis ope hine inde connati. 4. 
Patria. Secus amnem infra Lanzo in Pedemontio 
Italiae: Lisa aestate 1837. 
Ex auctore Tr. /lerifolio simile, sed notis laudatis 
distans. —  Leptodontiwm distinctum videtur. 
17b. Tr. sulphureum C. Müll.; dioicum; cespites la- 
tissimi rigidi elati sulphurei, laxe cohaerentes; caulis to- 
mento fusco inter folia ad apicem usque fere obtectus, 
flexuosus, parce breviter ramosus, gracilis, ubique sul- 
phureus; folia caulina Tr. ulocalycis, sed basi brevissimà 
laxius reticulata fuscidule striata; perich. Tr. ulocalycis, 
sed basi e cellulis laxis elongatis haud interruptis reti- 
culata; theca in ped. brevi flexuoso flavo erecta solitaria 
cylindracea arcuata, apicem versus angustata, microsto- 
> ma, basi aequalis, pallida, dein fusca, ore purpurea, 
operc. oblique subulato longiusculo; perist. d. brevissimi, 
infra orificium oriundi, angustissimi, irregulariter ad basin 
bifidi, laeves, aurantiaci, remote articulati. 
Patria. America centralis, Nicaragua in monte vul- 
canico Viego, alt. 5000 pédum: A. S. Oersted m. Febr. 
1847 legit. Ned 
A Tr. ulocalyce notis illustratis differt, e thecae for- 
ma Tr. aggregato simile. — Flos masc. lateralis, soli- 
tarius, turgide gemmaceus, foliis latissime rotundato - ova- 
tis, brevissime acuminatis, apice vix reflexis, basi laxe 
reticulatis, integerrimis; antheridiis maxime clavatis ar- 
cuatis, paraphysibus aureis multis angustissimis acutis, 
Parcissime fructificans. 
18b. Tr. subdenticulatum C. Müll; dioicum; Tr: 
epunclato simillimum, sed statura multo robustior, folia 
