ADELANTHUS. 405 
e caudice et juxta caulis basin proferuntur, alii assurgentes foliosi 
alii decurvi microphylli radicantes. 
Folia pauca inferiora minuta distantia rudimentaria, cetera majora, 
subequimagna, laxe imbricata—stolonum dissita—decurvo-subse- 
cunda accumbentia, interdum apice reflexa, subrotunda vel oblongo- 
rotunda, apice rotundato vel rotundato-truncata, subconcava, basi 
antica longe decurrentia, margine incurvo, postica late abrupte 
rotundata vel subsemicordata, margine repanda; cellule: mediocres 
subeequilatero-hexagonze conformes, (marginales autem quadratée) 
chlorophyllose, pariete ad angulos incrassato. 
Flores dioici: ? caulis basin versus laterales, solitarii vel fasciculati. 
Bractee tristichee, 3-4-juge, in gemmam ovoideam imbricatie, 
extime minute, intime foliis duplo breviores, laterales saepe latiores 
quam long, altera (saltem) 2-3-loba, apice imeequaliter ciliato- 
fimbriatz, inter se et cum bracteola intermedia ovata bifida ciliata 
basi plus minus alte connatze; omnes bractez albidee tener laxe 
subrectangulari-areolate pellucidee. Pistillidia ad 25, robusta ovato- 
subulata truncata. 
Perianthia etc. haud visa. 
A. magellanicus Lindenb.!, ad fretum Magellanicum ab Hook. fil. 
lectus, diversus est foliis triplo brevioribus, oblatis (6 x °75™™), parum 
decurrentibus, media basi cellulis longioribus vittatis. 
2. ADELANTHUS DECIPIENS (Hook.), Mitt. 
Spruce in Journ. Bot. 1876. 
Jungermania decipiens, Hook. in Engl. Bot., t. 2567 (1813); ejusd. 
Brit. Jung., t. 50; Plagiochila decipiens, Dumort. Rec., 1, 15 (1885); 
G.L.N., Syn. Hep., 24; Adelanthus decipiens, Mitt. l.c. ; Odontoschisma 
decipiens, Lindberg Mst. in Hartm. Skand. FI. 11, 144 (1871); ejusd. in 
Not. Soc. F. Fl. Fenn., 362, (1874); G. et Rabenh. Hep. Eur. n. 474 
1871). 
Grabs = andina) in sylva Canelos et monte Tunguragua Andium 
Quitensium, alt. 1200-2400 m., ad rupes et truncos prostratos in 
umbrosis (R.S., a. 1857). 
Folia 2°5 longa (ab ipsa insertione antica), 2:0 a basi postica x 2:1 lata ; 
cell Jyh ; br. int. 15; per 3-4x15; br ¢ 5 x'4( x “75 explanate) ; 
G2 Zo 125, 13 x -13™™, 
Ceespites densi, luride virides, siccando fuscescentes, in vivo graveolentes. 
Caudices prostrati, intricato-ramosi, subtus radicellis villosi, fragiles, 
caules erectos ascendentesve fastigiatos edentes. Caules 1—1}-polli- 
cares nigrescentes validi, simplices rarius furcati subramosive, e facie 
postica stolones paucos flagelliformes plus minus minutifolios pler- 
umque radicelliferos proferentes, apice decurvuli. 
Folia inferiora minora subimbricata appressa, superiora majora magis 
conferta, decurvo-secunda—raro distiche patula—oblique inserta, basi 
antica longe sensimque decurrentia, dein oblique orbiculata, apice 
rotundata retusave, margine antico incurva, postico subplana v. 
leviter concava et vel integerrima vel medio distanter 1-2—3-spinulosa, 
spinulis postice directis, cellulis intensius coloratis marginata, media 
basi indistincte vittata. Cellule subconformes, majuscule, hexagone, 
intus subrotundz ellipsoidezeve, subpellucidee fere vacue, limitibus 
validis trigonisque maximis flavidis, marginales subquadrate valde 
TRANS. BOT. SOC. EDIN. VOL. XV. 3A 
