Isopterygium.] 17. STEREODONTES. 499 
Ab Hypno brachyneuro foliis basi nunquam flavidis jam differt.— C. 
Müll. Le 
4. I. TENERUM (Sw. Fl. Ind. Occ. iii. 1817, Hypnum). Monoicum, 
humillimum. Folia distiche compressa, nitida, ovata acuminata vel lanceo- 
lata acuminata, parum concava, marginibus integerrimis vel indistincte 
remoteque serrulatis, nervis obsoletis, cellulis elongatis angustis ; perichze- 
tialia erecto-patentia, e basi suboblonga latiore longe anguste subulata, 
acuminibus subserrulatis breviter nervatis. 'Theca in pedunculo gracili 
inclinata nutansve, ovalis, s qualis, operculo conico oblique breviter ro- 
strato, peristomii interni ciliis singulis brevibus. 
Leskea pygmea, Tayl. 
Hab. Ins. Jamaica, Swartz, Heward, Wilds, Wilson, n. 180, 898 ; Porto 
Rico, Bertero; Trinidad, Black; Cuba, Wright, n. 107, Guadelupe, Nova 
Granata, ad fl. Magdalena in sylvis (600 ped.), Weir; Guiana, Parker. Fl. 
Amazon, Rio Caipurü, Spruce, n. 1069 ; fl. Negro, riv. Cauapuna, Spruce, 
n. 1067, 1068, in declivibus graminosis prope Guia, n. 1062, ad Panuré ad 
fl. Uaupes, n. 1070, ad saxa inundata, n. 1073, in arborum radicibus inun- 
datis prope montem Cocui, n. 1074, Manaos, n. 1075. Andes Quitenses, 
fl. Bombonasa (1300 ped.), Spruce, n. 1064. Andes Peruvianz, Tarapoto 
in lignis (1500-2000 ped.), Spruce, n. 1063, 1077, in monte Guayrapurina 
(2500 ped.), Spruce, n. 1066, ad cataractam fl. Huallaga (1300 ped.), 
Spruce, n. 1071, in monte Campana (4000 ped.), Spruce, n. 1076; riv. 
Shillicaio (1500 ped.), n. 1078, et (1800 ped.) n. 1083. 
Rami decumbentes, ramosi, 3—4-lineares. Folia pallide viridia, stra- 
minea, siccitate parum mutata. Pedunculus 3-linearis. 
5. I. LEUCOPHYLLUM (Hampe; C. Müll. Syn. ii. 280, Hypnum). 
Monoicum, H. albescenti simillimum, minus nitidum et magis distichum. 
Folia caulina e basi brevissima inzqualiter constricta, subovato-acumi- 
nata, subdenticulata, planiuscula, cellulis longioribus. Theca in pedunculo 
brevi, madefacta medio constricta, operculo conico brevi obliquo; peri- 
stomio H. albescentis.—C. Müll. l. c. 
Hab. Chili, ad arbores. 
6. I. TENERIFOLIUM (Mitt.). Monoicum ; caulis pallide viridis, elon- 
gatus, ramosus. Folia compressa, media ovato-lanceolata, lateralia pa- 
tenti-divergentia, ovata, acuminata, pericheetialia patula, ovata, apice 
dentata, acumine elongato angusto integerrimo, nervo brevi. Theca in 
pedunculo elongato nutans, ovalis, subzequalis, operculo conico-acuminato, 
peristomii interni ciliis duobus in unum coalitis, inter processus carinatos 
impositis brevibusque. 
Hab. Fl. Amazon, in ripis preruptis secus Obidos, Spruce, n. 1060. 
7. I. ArFUSUM (Mitt.). Caulis elongatus, pallidus, inordinatim sub- 
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