110 



Jan. 1908] Cultures of Uredineae in ip 07 21 



The telial stage is common and well known throughout 

 the United States and extending into Mexico, but the aecial 

 stage has rarely been collected. Collections of aecia are in the 

 writer's harbarium from Nebraska and Wisconsin, and in the 

 literature one is also recorded from Illinois. On the basis of a 

 single collection on Bidens frondosa Professor Burrill separated 

 it as a special form, and De Toni, in the seventh volume of 

 Saccardo's Sylloge, supplied the name Aecidium compositarum 

 var. Bidentis Burrill. 



4. Puccinia on Carex stenophylla. Teliosporic ma- 

 terial of this rust collected at Boulder, Colo., by the writer, was 

 sown on Solidago Canadensis and Baptisia leucantha, with no in- 

 fection. 



It was at this point in the work that a brief note of observa- 

 tion was seen in Dr. W. Tranzschel's second report on "Bei- 

 trage zur Biologie der Uredineen." This is a translation in full : 

 "In July, 1900, I found in Turkestan, near Irkeschtam on the 

 Chinese border, the Aecidium Draciinculi Thum. on Artemisia 

 Dracunculus in great abundance. Associated with the affected 

 Artemisia grew Carex stenophylla Wahlb., on which was found 

 uredosori." Accepting this as a hint, the Colorado material was 

 now sown on Artemisia dracunculoides. As no potted plant was 

 available, a sowing was made in the open, giving no infection, and 

 another in the greenhouse on a cutting placed in water. The lat- 

 ter attempt gave very abundant and unequivocal results. The 

 sowing was made May 31, and pycnia appeared June 6, followed 

 by aecia June 15, both numerous and finely developed. 



The type collection of this Aecidium was made in Siberia, 

 at Minussinsk, also on the Chinese border, but about a thousand 

 miles northeast of the locality where it was found by Dr. Tranz- 

 schel. This collection was distributed in Thuemen's Mycotheca 

 Universalis, No. 1223. A collection of aecia on Artemisia 

 dracunculoides from Nebraska was distributed in Ellis & Ever- 

 hart's Fungi Columbiani, No 1664. A careful comparison shows 

 no apparent difference between the Asian and American col- 

 lections, and the two are accepted as the same species. 



As a name and description seem to be demanded for this 

 species, the following are submitted : 



Puccinia universalis nom. nov. {Aecidium Draciinculi 

 Thuem., not Puccinia Draciinculi Auers.) 



0. Pycnia chiefly epiphyllous, numerous in orbicular groups, punc- 

 tiform, honey-yellow, rather inconspicuous; subepidermal, slightly de- 

 pressed-globose, 100-160 A* broad by 90-112 v- hisdi; ostiolar filaments 40- 

 80 m long. 



1. Aecia chiefly hypophyllous, crowded in orbicular groups opposite 

 the pvcnia, 1-3 mm. across, peridia cylindrical, 0.5 mm. high, margin 

 usually erect, erose, peridial cells rhomboidal, 20-30 a* long, overlapping, 



