§9 



m 



vate entire lobes. Vt; NY; Can; Alk; 

 Greenland. Synonyms: Acrostichum al- 

 pinum Bolton, Fil Brit 76 t 42 (1790). — 

 A. hyperboreum Liljeb, Kongl Vetensk 

 Akad Nya Hendl 14:201 (1793). — 

 Woodsia hyperborea R. Br, Prodr Fl 

 Nov Holl 1:158 (1810). 

 W. GLABELLA R. Br. 



Smooth and naked thruout; fronds 

 linear, tapering - slightly below, 2-5' hi, 

 pinnate; pinnae deltoid or ovate, lower 

 rather remote, cut into, 1 3-7 rounded or 

 subcuneate entire lobes. Vt; NY; BC; 

 Alk; Greenland. 



**Stipes not jointed; cilia of indus- 

 ium very short, hidden by sporangia. 

 W. SCOPUUNA D. C. Eaton. Can Nat 

 II, 2:90 (1865). B 2:348. 



Rtstock short, creeping - , very chaffy; 

 stipes 2-4' long-, puberulent like rachis 

 and under surface of frond with minute 

 flattened hairs and stalked glands; 

 fronds lanceolate, 4-8' long, pinnate; 

 pinnae num, oblong-ovate, pinnatifid 

 with 10-16 sh ovate or oblg toothed 

 divisions; indusia. very delicate, deeply 

 cleft into laciniae which terminate in 

 short hairs. Colo; Ar; Cal; Ore; Alk. 

 WOODSIA OREGANA Eaton. 

 B 2:348. 



Stipes and fronds smooth; fertile 

 fronds taller than sterile ones; pinnae 

 triangular-oblong, pinnatifid; segs ob- 

 long or ovate, toothed or crenate; teeth 

 often reflexed and covering submarginal 

 sori; indusia very minute, divided al- 

 most to center into a few beaded hairs. 

 Ar; Ut; Colo; Ore; Cal; Wis; Mich; Ok; 

 Mebr; BC, Manitoba. 

 WOODSIA MEXICANA Fee. 

 7 me Mem Fam Foug 66 (1854). 



Stipes 2-3' long, smoothish, or with a 

 few scattered scales; fronds 3-9' long, 

 lanceolate; pinnae sub-opp triangular- 

 lanceolate, pinnately divided into finely 

 toothed segs, teetn in young fronds end- 

 ing in delicate, semi-transparent, cili- 

 ated tips; sori near margin, broad, con- 

 fluent," receptacles dot-like, scales of in- 

 cusium 4, laciniate, narrow, dividing at 

 end into articulated hairs; sporangia 

 nearly sessile. Ar; NM; Baja nits! 



Section H^OFEI.TIS Torrey. Indus- 

 ium conspicuous, at first enclosing 

 sporangium, but early opening at top 

 and splitting* into several spreading 

 lagged lobes. 



W. OBTUSA Torrey, Cat PI in Geol R 

 NY 195 (1 840). 



Stipes not jointed, 3-6' long; fronds 

 broadly lanceolate, minutely glandular- 

 hairy, 6-12' hi, nearly bipinnate; pinnae 

 rather remote, triangular-ovate or ob- 

 hmg, pinnately parted; segs oblong, ob- 

 tuse, crenately toothed, lower ones pin- 

 natifid; veins forked. Nova Scota; Ga; 

 A 1 a; Tex; Wis; Nebr; Alk; BC. Synon- 

 vms: Polypodium obtusum Spreng, An- 

 ieit Kennt Gewachse ed 1, 3:92 (1804). — 

 Woodsia perriniana H & G. — Aspidium 

 •^btusum Willd. — Cheilanthes crenata 

 Kunze. — Hypopeltis obtusa Torr. 

 Variety PLUMMEEAE Maxon, US Nat 

 Mu pr 23:644 (1901). 



Smaller and more glandular. NM; Ar. 

 Synonyms: W. obtusa glandulosa D. C. 

 Eaton" and Faxon, Torr el b 9:50 (1882). 



— W. plummerae Leramon, bot gaz, 7:G 

 (1882). 



Tribe DICKSONEAE. Sori roundish or 

 transversely elongate, borne at ends of 

 veins or on marginal cross-veinlets, with 

 an indusium attached at base or base 

 and sides and opening toward margin of 

 seg. 



DICKSONIA L'Her. 



Sori marginal, small, indusium cup- 

 shaped, somewhat 2-valved, under por- 

 tion confluent with a lobule of frond. 

 Named for James Dickson, an English 

 botanist; about 50 sp, many arborescent. 

 B, FIIiOSXtrSCtrLA Willd, Enum PI 

 Hort Berol 1076 (1809). 



Rtstock slender, extensively creeping, 

 naked; stripes stout, chaff less; fronds; 

 1-2%° long*, 5-9' broad, ovate-lanceolate 

 and pointed, com 3-pinnatifid; pinnae 

 lanceolate, pointed; pinnules cut into 

 oblong and obtuse cut-toothed lobes; 

 rachis and under surface minutely glan- 

 dular and hairy; sori minute, each on a 

 recurved toothlet, com 1 at upper mar- 

 gin of each lobe. Can; Minn; Twin; Ga; 

 Ala. Synonvms: Dicksonia punctiloba 

 Hooker, sp Fil 1:79 (1846). — Nephrodium 

 punctilobulum Michx Fl Bor Am 2:26S 

 (1803).— Aspidium punctilobulum Tor- 

 rev. — Dennstaedtia punctilobula Moori% 

 Index Fil xevii (1857). 



o 



A NEW LICHEN 



BLASTEN f A ORCUTTI Hasse. 



Thallus thin of a gamboge or rich yel- 

 low color, smoothish, determinate, finely 

 rimose, limited by a narrow black hypo- 

 thalline border; apothecia sessile and el- 

 evated sessile, from 0.5-1.0 cm wide, disk 

 flat to plano-convex, orange-red, with* a 

 subturgld, entire or slightly crenate and 

 elevated margin, somewhat lighter m 

 color than the disk; with Iod the disk 

 stains purple, its margin and the thallus 

 are not affected. Epithecium granulose, 

 faint straw color; thecium colorless, 64- 

 84 mic hi; paraphyses loosely adgluti- 

 nated, barely thickened above; hypothe- 

 cium colorless; asci clavate and subin- 

 flated clavate, 62 mic lg", 16 mic thick, 

 the membrane thickened above; spores 

 8, polari bilocular, 12 mic Ig, 6 mic thick, 

 the loculi are small with a lg connecting 

 tube, but few of the asci are seen with 

 spores and . these are ill defined; hy- 

 men ial geletine with Iod. a deep blue, 

 KHO stains the epithecium carmine, 

 thecium and hypothecium are not affect- 

 ed; spermogones not seen. The_ bright 

 yellow-green protococcus gonidia are 

 8-12 mic in diam.— H. E. Hasse (orig- 

 inal). „ 



On calcareous rock, Uagunas, Oax, 

 Mexico, C. R. Oreutt, 1910. 



Tho abundant, the material available 

 for examination was scanty, type m 

 Hasse herb. 



o 



OIL PAINTINGS. 



A 1. "A MEXICAN GENTLEMAN." 



Canvas 26V 2 x33 inches, im- 



