Boletus Satanus, Lenz. +540. Polyporus. Pileus one inch thick, convex, dirty white or clay color; Pores red, small. Stipe ½ in. thick, dirty white. Earth woods. Aug. +541. Boletus Summer. ++542. Vegetans Uredo sphericis? On Digitalis via sanguinalis or filif. Sept. +543. Stemomitis fusca. Browed, blackish-brown, cylindrical - Stipe black, hardly continued to the summit Peridium beneath rotten log. June. 544. Collema Bark of Populus aquatica, viv. Pusla Aspergillus, m. lfs. +545: Ascophora Maceds. White, becoming dark brown. On Cucurbita verruc. negrocana. +546. Sphaeria. Rocks & stones in old fields. Berkeleyii? selfflowered, ++547. Polyporus This a sent to me, & I know not locality; Probably upon share & dead tree. It was composed of two opposite parts +550. High up living Oaks. white. like 1 largest sent, & two or three Perfor crispus, B&C. smaller perfect ones, & one in: spec. young Aug. perfect. Color yellowish white. Uredo candida. Much shrunk in drying. July. +551. Caeoma on fol. Condruetus panduratus, fomentarius, Fr. +548. Polyporus Base & stumps & decaying trees. Common. Pol. Curtisii, Berk. +549. Make this to be a form of 548. The marking & coloring of upper surface varies with age. sometimes a dirty white, sometimes with a varnish? red & again both united. Those with a stipe, & those without, are both found in the same group on a stump, according as the fun- gus happens to be upon a soft or hard matrix. I have a single specimen, apparently this species, with a circular pileus & central stipe 4 in. long, unequal & of varnished red like 549. The pileus is dull white on both sides. It grew on the earth. If I find another, I will send it.