THE EXPLORATIONS OP HARTWEG IN AMERICA. 51 



Effused, black, forming a loose tomentose layer on the surface 

 of the wood, extending for several cm. Fertile hyphse very short, 

 bearing chains of 5-7 or more conidia, varying from globose 7-8/^, 

 to oblong or oblong-elliptical 12-20x7-8//, slightly narrowed in the 

 middle or biconical, 20-24x8-10/^, and of a lighter brown. The 

 longer conidia are mostly 3-septate but not constricted, and all except 

 the biconical ones are nearly opaque. The chains of conidia are 

 more or less branched and often are composed entirely of the smaller 

 globose conidia, but mostly these smaller ones are between the 

 longer conidia. 



T. pulvinata Speg. has the chains of conidia shorter and the ob- 

 long ones are wanting. 



The following corrections concerning species recently pub- 

 lished are here inserted: Cenangella tJmjina, Ell. & Barth., which 

 was published in Erythea, IV, No, 1, Jan., 1896, p. 3, proves to 

 be a synonym of Patellea hysterioides E. & E, As the species be- 

 longs to the Patellariacese rather than the Dermateacese, the former 

 name becomes obsolete. Puccinia Serjanix, described in the January 

 number of the Erythea (V, 6) is not specifically distinct from P. 

 uArechavaletse, Speg., and Puccinia transformans (Ic. V, 6) is ante- 

 dated about three mouths by P. elegans Schrtr., in Hedwigia, 

 October, 1896. 



THE EXPLORATIONS OF HARTWEG IN AMERICA. 

 By Willis L. Jepson. 



{Concluded from page 35.) 



On account of the political disturbances, a contemplated trip to 

 San Diego was abandoned, and it was determined instead to visit 

 the Sacramento Valley. It was not, however, until the next spring, 

 March 8, 1847, tliat a favorable opportunity offered. This journey 

 was made by water. The explorer touched at San Francisco, Corte 

 Madera (Marin County), botanizing at various landing-places, and, 

 passing through the upper bays into the Sacramento River, arrived 

 at "Fort Sacramento." Thence he proceeded by land, and made 

 his headquarters at the junction of the Yuba and Feather Rivers. 



