413 
ad ripem fluminis „Bio Arroyo“, Yucari chico, 7. Febr. 
1876, eum Hepatieis. 
169. Neckera (Orthostichelle) Avellanedae ». sp.; 
dioica; speciosa pedalis longissime pendula firmiuscula e 
virente flavescens vel rufescens, ramis remotis subtereti- 
bus pluries divisa, ramulis remotiuseulis subteretibus hori- 
zontalibus vel plus minus recurvis flexuosis breviuseulis 
vel longioribus caudiformibus irregulariter pinnata, in ra- 
mum stolonaceum elongatum flavescentem subgenieulato- 
flexuosum protracta; folia nitida dense imbricata, e basi 
vix coarctata cymbiformi-ovalia, apice excavata acumine 
brevi basi swbinvoluto terminata, margine integerrimo 
ereeto, nervo tenui luteo nitido ante acumen evanido, 
cellulis linearibus densis subscariosis et alaribus paueis 
winutis incrassatis aureis aurionlum valde indistinetum 
sistentibus; perich. parum majora in gemmam erectam 
elausam congesta valde flavescentia e basi subvaginante 
robustius areolatä magis carinato-eymbiformi-concava, acu- 
mine nee involuto acutiori coronata; theca in ped. per- 
brevi fuscato glabro erecta parva elliptica coriacea 
fuseata exannulata, operculo minuto basi depresso oblique 
tostellato obtecta, sicca evacuata ore parvo veluti obli- 
quata leviter angulata, humore aequalis glaberrima, caly- 
ptra minuta lanato-hirta flavida; perist. parvum imperfe- 
etum; dentes externi breves lanceolati indistincte trabecu- 
lati et linea longitudinali brevissima veluti perforata in- 
distineta exarati pallide diaphano-flavescentes, interni: 
membrana obsoletissima tenerrima hie illic adhaerens vel 
nulla; sporae magnae vesieulosae. 
Patria. Argentinia subtropiea, Rio seco inter Oran 
et Sn. Andres, 20. Mart. 1873; Cuesta de Buyuyu, 15. 
