Dr. Rosenstock: Filices novae a cl. Dr. O. Buchtien in Bolivia collectae. 53 
17. Dasylirion Wheeleri var. Wislizeni Trelease, l. c., p. 439. — 
Shortly caulescent. Leaves 15—20 mm wide, scarcely 1 m long, green 
or slightly glaucous, typically smooth and rather glossy: prickles 5—10 mm 
apart, 2—3 mm long, redbrown or with yellow base, the intervening 
denticles often reddish. Inflorescence ample. Fruit triangular-obcordate, 
6—7 X 8-9 mm, the thick style about equaling the open moderately 
deep notch. Seed (immature) 3 mm long. — Pl. 12. — North-central 
Mexico and adjacent Texas, — apparently grading into D. Wheeleri. 
Adjoining or overlapping the area of D. Wheeleri and Nolina erumpens. 
— Specimens examined: Chihuahua. Paso del Norte [Juarez] (Wis- 
lizenus, 218, 1846, — the type; ?Stearns, 1910, — with smaller, 
slightly roughened dull leaves) Without locality (Thurber. 1852), 
Texas. El Paso (Dewey, 1891; Wagner, 985, 1892). Franklin Moun- 
tains (Rose, Standley & Russell, 12280, 1910). 
X. Filices novae a cl. Dr. 0. Buchtien in Bolivia collectae. 
Von Dr. E. Rosenstock, Gotha. 
(Originaldiagnosen.) 
ASA? 
34. Pteris muricata Hk. var. inermis Ros., nov. var. 
Varietas rhachibus costisque inermibus a P. muricata, stipitibus 
axibusque fuscis, punctulato-rugosis a P. deflexa Lk. diversa. 
Bolivia: Yungas septentrionalis, Unduavi, 3300 m alt, Nov. 1910, 
leg. Dr. O. Buchtien no. 2784. 
35. Blechnum lima Ros., nov. spec. 
Lomaria; trunco (e schedula) arborescente, ad 1 m alto; stipiti- 
bus ad 30 cm longis, 5 cm medio crassis, flexuosis, atroviolaceis, ferru- 
gineo-tomentosis, paleis scariosis atrobrunneis vel atropurpureis, sub- 
integerrimis, usque ad 1,5 cm longis, 2—3 mm latis ima basi ornatis, 
ceterum paleis aequalibus minoribusque ferrugineis vel albescentibus, 
membranaceis, flaccidis, minute denticulatis dense obtectis; laminis 
sterilibus elongato-oblongo-lanceolatis, in apicem integrum acuminatis, 
coriaceis, obscure olivaceo-viridibus, facie utraque plus minusve adpresso- 
tomentosis, ad 50 cm vel ultra longis, 20 cm latis, pinnatis; pinnis in- 
ferioribus distantibus, oppositis, paullo abbreviatis, subreflexis, ceteris 
subcontignis, alternis, patentibus, summis exceptis omnibus breviter 
petiolatis, e basi superiore truncata, inferiore rotundata linearibus, acu- 
minatis, margine reflexo obscure, versus apicem profundius crenulatis, 
medialibus maximis ad 10 cm vel ultra longis, 13/, em latis, deorsum ad 
dimidiam fere decrescentibus, sursum usque fere ad 1!⁄ cm longitudinis 
1) Fortsetzung von den Artikeln in Rep. V (1908), pp. 228—239, Rep. VI 
(1909), pp. 308—316 und Rep. IX (1911), pp. 342—344. 
