6() Illinois Sf((f(' Jjdhoniforu of yatxraJ Histonj. 



Hah. — Wet rocks chiefly in mountain rivulets. (Eu.) 

 Bib. — Syn. Hep. p. 426, Hep. Europ. p. 26 (sub Jubula). 

 Delin.—Brii. Jung. t. 1; Ekart, t. X, f. 82. 

 Exsic—MviSC. AUeghan. No. 2?1; Hep. Bor.-Amer. No. 106. 



14. F. Nisquallensis SuUiv. Stems procumbent, pin- 

 nately decompound; leaves closely imbricate, obliquely oval 

 acuminate, apiculate, strongly inflexed, the auricle small ovate- 

 galeate; ampliigastria obovate-rotund, double the vs^idth of the 

 stem, bifid, the sinus and lacinise somewhat obtuse, the margin 

 reflexed; lobes of the involucre linear, deflexed-falcate, cristate- 

 ciliate at the Imse; inner involucre oval-obovate, subiramersed 

 trigonal, dorsally somewhat convex, ventrally unicarinate. 



Hah.— Yovi Nisqually, Ore. {U. S. Expl. Exped.) 

 Bib. — Mem. Amer. Acad. n. ser. Ill, p. 175. 



** Auricles ohlong-cijlindric or clarafc (or ohlomj-galeate in 



No. 16). 



f Leaves inarked irith a roir <>f JHoxiliform cells. 



X Leaves orbicular. 



15. F. tamarisci Nees. Stems bipinnately branching, 

 somewhat rigid; leaves orbicular, obtuse, mucronately acute or 

 SLibacuminate, decurved, entire, marked with a moniliform me- 

 dian line, the auricle oval or oblong, distant from the stem; 

 ampliigastria quadrate-ovate or obovate, emarginate, revolute 

 at the margin; inner involucre oblong, sulcate dorsally, ob- 

 tusely carinate ventrally; involucral leaves bifid, serrulate. 

 (JuiKjeruHinia tamarisci L.) 



Hah. — "In America Septentrionale" (iJcync/i). (Eu.) 

 Bih.—^yu. Hep. p. 438, Hep. Europ. p. 29. 

 Delhi.— V,Y\i. Jung. t. 6; Ekart, t. II, f. 17. 



16. F. Grayana Mont. Stems creeping, simply pinnate; 

 leaves nearly orbicular, concave, decurved, marked in the mid- 

 dle by a moniliform line, the auricle oblong-clavate, emarginate 

 at the lower end; amphigastria oblong, flat, 2-cleft, the sinus 

 obtuse; inner involucre pyriform, 8-sided, obtusely carinate 

 beneath; involucral leaves unequally 2-cleft, the dorsal segment 

 oblong, pointed, nearly entire, the ventral subulate. (F. Asa- 

 qrayana Mont, in Syn. Hep. p. 441!) 



