White : The Nidulariaceae of North America 257 



which has not since been reported. CyatJuts rufipcs was described 

 in 1897 by Ellis & Everhart * from Kansas, and the next year 

 Hennings, || described CyatJins nivcotomentosns from California. 



The following summary will show the distribution of the 

 known species of Cynthia : 



Europe, 7 species : C. complanata, C. deforviis, C. fimetaria, C. hirsuta, C. 

 lentifera, C. suhkulosa, C. umbrina. 



Asia, 6 species : C. emodensis, C. Hookeri, C. intermedia, C. minima, C. Alon- 

 tagnei, C. sulcata. 



Africa, 5 species : C. affinis, C. dasypus, C. pallida, C. hirstita, C. lentifera. 



Australia, g species : C. Baileyi, C. descrtorum, C. fimicola, C. intermedia, C. 

 stercorea, C. Montagnei, C. pezizoides, C. pusio, C. lentifera. 



New Zealand, 3 species : C. Colensoi, C. N'ovae-Zelandiae, C. similis. 



North America, ii species: C. intermedia, C. lentifera, C. melanosperma, 

 C. Berkleyana, C. riigisperma, C. rufipes, C. hirsuta, C. stercorea, C. pallida, C. 

 Wrii^litii, C. fragilis. 



Cuba, 7 species : C. intermedia, C. Montagnei, C. pallida, C. limbata, C. Poep- 

 pigii, C. Berkleyana, C. stercorea. 



South America, 12 species : C. ambigua, C. dasypus, C. limbata, C. micro- 

 spora, C. Montagnei, C. plicata, C. Poeppigii, C. Puiggarii, C. scutellaris, C. hirsuta, 

 C. lentifera, C. Gayana. 



i$>ii4>psis of tbe Species of Cyatliia 



Peridium sulcate-striate within. 



Spores large, more than 35// long. I. C. Poeppigii. 



Spores small, less than 8 m long. 2. C. Berkleyana. 



Spores of medium size, 12-20/i long. 



Peridium sparingly clothed with short fasciculate hairs without. 



3. C. intermedia. 



Peridium thin, shaggy-tomentose without. 4. C. hirsuta. 



Peridium very tough and brittle, rough tomentose. 5- C. dura. 



Peridium faintly striate near the mouth, not sulcate within. 6. C. Montagnei. 



Peridium smooth within, not sulcate. 



Spores large, more than 40 /i long. 7- C. melanosperma. 



Spores small, less than 15 /^ long. 



Sporangioles darkish ; margin of peridium straight. 



Peridium smooth or nearly so. 8. C. pallida. 



Peridium strigose-tomentose. 9. C. rugisperma. 



Sporangioles light colored ; margin of peridium often recurved. 



10. C. lentifera. 

 Spores of medium size, 15-30 /< long. 



Peridium with a red felt-like mycelial bulb at base. II. C. rufipes. 



Peridium with a thick bulb of whitish mycelium. 12. C. Wrightii. 



Peridium scarcely thickened at the base. 13. C. stercorea. 



\ Bull. Torrey Club, 24 : 125. 1897. 

 f Hedwigia, 37 : 274. 1898. 



