112 e::i;:-t :f thi eichmoxd eiver, 



CoccvXEMA ASPKF.UM Ehr. 

 Long. 105-200; l*t. t^It. 24-44, ^ 10-14/«. Striae 5 in 10 /*. 

 LBm(ire(2. 11). KTogk(41. 45). 



Syn. Coec patiroides Kutz.: Cf. Heiibaad, Anvergne, PI. iii., 1 

 10; Clere^ Syn. Rare in lisoioie gatherings, eommon in those 

 fr:~ Kyrr^.r Sttt.c e^^ily resolved, punctate. 

 - :: :? XAVicrLA Bory. 

 Naticci^ ii-::::-. Ku:z <PL W^ f.5,6). 

 Valrae^Iipricae vel eliipti: . r aras. 

 liong. 16-28: lai. Talv. 6-11. Lra:ss. frost. 8 /i. 

 Kntzing's %nre, Bae., PL 3. £. 32. does not show a psendo- 

 stanros. whi^ in oar specimens is nearly always present. When 

 afasentp in all torms the e^itral nodole is aeeentnated. 



Tar. BHOMBOIDKA, n.var. (PL ix^ £.7). 

 ValTs rhomlmdeo-lanoeolatae, in medio modice angnlatae^ ad 

 xfiees rapide attennatje. lat^bos planis vel levi^ime retosis, 

 ajpeobos acute rotnndatis. 



Long. 30-36: lat. 11-12, apic. 3-4: crass, frost. 6-11 /l 

 Three forms of tfiis variation were noted: — (1) with strongly 

 aeeentnated eentral nodole and no pseodostaoros : (2) with a 

 pseadostanros: (3) with pseodostaoros and divided eolumella. In 

 girdle-view the sides are often considerably convex. 



Tar. OTALis, n.var. (PL iv., f.8). 

 Talvs late eUipticae, apidbos late-rotandatis. 

 liOfig. 22: lat. valv. 10 /t. BarLssime. 



Ts: sTHHZXjL'^jyi. n->-ar. (PLiv., f.9). 



zag«HMB polos versos eoneats; apicibos interdnm 

 "i . '-' -^ribos in medio planis, parallelis, apices versos 



r . . .:.-. 1 S-9: crass, fmst. 8 fu 



. --- ;^ __r. -:^ L divided cnjlnmella. 



Var. rcBCTHCTTULEis. n var. <PL iv., f.10-12). 

 ' - It : icae paene eircolares, apicibos levissime 



