BADHAMIA 27 



q. Sporangia usually sessile, sometimes with a short, yellowish, 



flaccid stalk; spores dusky violaceous 17. B. foliicola 



q. Always sessile on a broad base; spores grayish lilac; alpine. . 18. B. alpina 

 r. Sporangia pale lilaceous, rarely white; spores roughly 



warted or subreticulate 19. B. lilacina 



r. Sporangia grayish brown, stipitate; spores dark, rough- 

 ened, 12-14 n 20. B. rubiginosa 



r. Sporangia darker, sessile; spores roughly warted, 15-18 n 21. B. subaquila 



1. Badhamia versicolor Lister 



Jour. Bot. 39 : 81. 1901. 

 PI. I, Fig. 14. 



Sporangia minute, 0.2-0.5 mm. in diameter, scattered or clustered, 

 gray, flesh colored or occasionally white, sessile, the calcareous deposits 

 slight; capillitium white or apricot colored; spores ovoid 10-12 X 8-9 fx, 

 arranged in clusters of 10 to 40, forming hollow spheres or ellipses, 

 dull purple and minutely warted at the broad end, elsewhere paler and 

 nearly smooth. 



This little species, as it comes to us, is gray, very uneven in size and 

 somewhat irregular in form and habit. The capillitium in our speci- 

 mens is white. The spores furnish the distinguishing character. They 

 are sometimes globose, about 9-10 /x. Most of them are definitely and 

 permanently affected in shape by the fact of cluster-association, nar- 

 rower in the direction of the cluster center. In typical forms, in which 

 they occur in hollow spheres, they are not pyriform or conical as in 

 other species with clustered spores, but oval in outline. Specimens 

 from Colorado referred here by Dr. Sturgis have the spores in smaller 

 solid clusters, easily broken apart. They may be distinct. 



On the bark of living and dead trees, and on mosses and lichens in 

 such situations. Colorado, Ontario; Great Britain, Germany, Switzer- 

 land, Rumania, India. 



2. Badhamia nitens Berk. 



Trans. Linn. Soc. 21 : 153. 1852. 

 PI. II, Figs. 16, 17. 



1852. Badhamia pallida Berk., Trans. Linn. Soc. 21 : 153. 

 1863. Badhamia inaurata Currey, Trans. Linn. Soc. 24 : 156. 



Sporangia gregarious or closely crowded, globose or depressed- 

 globose, 0.5-1 mm. in diameter, yellow, greenish yellow or gray- 

 ish green, rugulose, sessile; capillitium yellow, forming an open net 

 with occasional thickenings at the nodes; spores clustered, delicately 

 roughened, violaceous brown, 10-12 i*. Plasmodium yellow. 



