FAMILY POLYANGIACEAE 



1039 



Etymology: Latin rnedius, medial, 

 moderate. 



Fruiting body: Glistening, orange- 

 colored cysts attached to cystophore in 

 clusters by means of filamentous stipes 

 about 40 microns long. Deciduous. 

 Mass of rod-shaped cells from which 

 cystophore develops colorless to pink. 

 Cystophore composed of bundles of cells, 

 often branched; appear similar to those 

 of Chondromyces aurantiacus var. frutes- 

 cens. Cysts variable in shape; pre- 

 dominant are those rounded or flattened 

 at the apex and tapered toward the base, 

 24 to 78 by 26 to 93 microns. Average 

 51 by 55 microns. 



Spores : No data. 



Habitat: Soil. 



Illustrations : Krzemieniewski (loc. 

 cit.) Plate XVII, Figs. 20-22. 



7. Chondromyces minor Krzemieniew- 

 ski. (Acta Soc. Bot. Pol., 7, 1930, 265.) 



Etymology: Latin minor, less, little, 

 small. 



Fruiting body : Cell masses from which 

 cystophore develops, reddish-violet in 

 color. Cystophore white, simple or 

 branched, up to 120 microns high, 17 to 

 89 microns thick. Cysts borne in clumps 

 of 2 to 20 at apex of cystophore and 

 branches on delicate colorless stipes. 

 Cysts rose-red becoming copper-red when 

 dry; pear-shaped, tapering toward base 

 and broad at the apex; 20 to 47 by 20 to 



65 microns; average 28 by 38 microns. 

 Deciduous. Stipes 3 to 6 by 10 to 25 

 microns. 



Spores : 0.6 to 0.8 by 2.9 to 4.3 microns. 



Vegetative cells: 0.6 by 3.8 to 7.2 

 microns. 



Habitat: Soil. 



Illustrations : Krzemieniewski {loc. 

 cit.) Plate XVII, Figs. 23-24. 



8. Chondromyces catenulatus Thaxter. 

 (Bot. Gaz., 37, 1904, 410.) 



Etymology : Modern Latin from catena, 

 a chain, = occurring in chains. 



Swarm stage (pseudoplasmodium) : 

 Cultivated only on original substrate. 

 Rods 1 to 1.3 by 4 to 6 microns. 



Fruiting bodies : Cysts light yellow- 

 orange, 20 to 50 by 18 microns in rosary- 

 like chains, which may be branched once 

 or twice, sessile on a short compact 

 stalk, cysts separated by shriveled isth- 

 muses. Chains to 300 microns. Cysto- 

 phore simple 180 to 360 microns, cleft 

 above, and passing over into the chains, 

 rather broad at base and spreading 

 somewhat on substratum. The divi- 

 sions of the cystophore are pointed, 

 short and slightly swollen. 



Source and habitat : Thaxter {loc. cit.), 

 on decaying poplar wood. New Hamp- 

 shire. 



Illustrations: Thaxter {loc. cit.) PI. 

 26, Figs. 1 to 5. 



