(448) 



: Cupressus torulosa Don. 



: Himalaya Mts., India, on Cupressus torulosa. 



Known only from the type locality. 



Sci. Mem. Med. Off. India 5 4 : pis. I, 2, 3. 



14. Gymnosporangixim juvenescens sp. nov. 



Aecia chiefly hypophyllous, usually in annular groups 1-2 mm. 

 across, cylindric, 2-4 mm. high by 0.3-0.4 mm. in diameter; 

 peridium tardily dehiscent at apex, first rupturing by longitudinal 

 slits along the sides; peridial cells seen in both face and side views, 

 lanceolate-oblong in face view, 16-23 X 65-1 10/u, linear-rhomboid 

 in side view, 17-27/z thick, outer wall rather thin, 1-1.5/i, smooth, 

 inner and side walls medium thick, 5-7^, finely and closely ver- 

 rucose-rugose with irregular and oftentimes ridge-like papillae; 

 aeciospores globoid, 18-26X21-30^, wall chestnut-brown, 2-3^ 

 thick, finely verrucose. 



Telia caulicolous, often causing a fasciation of the young shoots 

 and forming witches' brooms, usually causing the leaves of the 

 affected branches to take on the subulate juvenile form, apparently 

 arising from the axils of the leaves, hemispheric, 1-2 mm. 

 across by 1-1.5 mm - high, cinnamon-brown; teliospores 2-celled, 

 ellipsoid, 18-26X39-52^, slightly or not constricted at the septum, 

 usually rounded both above and below, wall pale cinnamon-brown, 

 i-2/i thick, occasionally slightly thickened over the germ-pores; 

 pores 2 in each cell near the septum, or often only one in the 

 upper cell and apical. 



For the aecia: Amelanchier alnifolia Nutt., A. florida Lindl., 

 A. oreophila Nels., A. polycarpa Greene, A. pumila Nutt. 

 For the telia : Juniperus scopulorum Sarg. (Sabina scopulorum 

 Rydb.),/. virginiana L. (S. virginiana Antoine). 

 Type locality: Type collected at Boulder, Colorado, on Junip- 

 erus scopulorum, April 27, 1907, Arthur, Bethel &f Kern. 



Distribution: From British Columbia and Alberta southeast 

 to the Black Hills of South Dakota and to Colorado, and locally 

 in Nebraska and Wisconsin. 



Illustration: Mycologia 3: 158,/. ic, pi. 48, f. 3. 

 Exsiccati: Ellis & Ev. N. Am. Fungi 3146; Griff. W. Am. Fungi 

 246, 264; Ellis & Ev. Fungi Columb. 1676; Barth. Fungi Columb. 

 2527, 2580, 2977; Vesterg. Micr. Rar. Sel. 1189; Barth. N. Am. 

 Ured. 108. 



The species here described under a new name is the one which 

 the writer has been referring to in his publications as G. Nelsoni but 



