Report of the Botanist. 105 



11. Growing singly or scattered 15 



15. Plant terrestrial ' 16 



16. Club fleshy, obtuse lY 



17. Naked at the base, 6'^ -12'' thick pistillaris 



17. White myceliiiin at the base, 2" -4:" thick, Ligula 



16. Club filiform, acute juncea 



15. Plant epiphytal mucida 



All the white-spored branched species given in the preceding- 

 table are terrestrial. C. ti'ichopus I have found only among 

 sphagnum. 0. crisiata rarely occurs with branches obtuse, and 

 not crested. 6'. sjmvulosa I'arely may be found without wliite tips 

 to the branches, but in every instance of such exceptional forms 

 coming under my observation, they have been associated with a 

 great abundance of the normal form. C. inoequalis grows especi- 

 all}^ in sw^amps and sometimes singly. It is quite fragile. C. 

 Tniicida is remarkable for the green confervoid stratum that covers 

 the moist rotten wood on vrhich it grows. 



Genus— JECIDIUM Pers. 



Peridia tubular or cup-shaped^ at length open at the top ivith the 

 margin lohed or lacerated ; spores suhglohose, colored. 



The peridia normally occupy the lower surface of the leaves of 

 plants, sometimes scattered over the whole of that surface, but 

 more often collected in little orbicular clusters. They open at the 

 top, revealing the globose or ovate, yellow or orange-colored spores 

 within, and are not inaptly termed " Cluster cupsP The margin 

 of the cup or peridium is generally fringed or scalloped with little 

 rounded, reflexed lobes. The subiculum or spot on which the 

 cups are seated is usually more or less discolored, yellow and red 

 being the prevailing hues. The spermogonia, minute pustules 

 which occur with the cups and are thought to be the male plant, 

 are not always readily detected. They usually occupy the center 

 of the spot on one or both sides of the leaf. More' than thirty 

 species of ^cidium have been found in the State, of w^hich the 

 following is a synopsis. 



a. Peridia scattered over the w^hole under- 

 surface of the leaf, or over indefinite portions 

 of it. 



1. Peridia short, naked 2 



2. Mouth with a few (3-5) distinct lobes quadeifidum 



2. Mouth entire, indistinctly or many lobed 3 



3. Leaf green above, scarcely discolored 4 



4. Spermogonia numerous, distinct 5 



5. Mouth wide, lobed ; leaf rugulose above Eanuxculi 



5. Mouth at first narrow, w^ith an incurved, sub- 

 entire margin ; leaf not rugulose aroidatum 



4. Spermogonia few, indistinct or none .... 6 



