Uredinacese, Phrag-mosporse, Pucciniastrum 401 



teleutosporiferis ampliigenis, eisclem maculis insidentibus, sparsis, 

 minutis, pulverulentis, obscure brunneis; teleutosporis ellipsoideis 

 vel oblongis, apice rotundatis, non incrassatis, basi rotundatis, 

 typice 2-septatis, rarissime 3-septatis, ad septa ut plurimum non 

 constrictis, apice parce et minutissime tuberculatis alibi levibus, 

 melleis, tandem flavo-brunneis, 40-50 « 22-34 rarius usque 54 a. 

 longis, episporio ca. 3 a. crasso; pedicello hyalino, usque 45 a. 

 longo, crasso, basim versus attenuato, in aqua tandem intume- 

 scente. 



Hab. in foliis vivis Ivesiae unguiculatae in California 

 (G-. Engelmann). 



PUCCINIASTRUM Ofctli Syll. p. 762, IX p. 318, XIV p. 363. 



XVI p. 319. 



1. Pucciniastrum Castaneae Diet. in Hedw. 1902, p. (178). — Soris 1329 

 uredosporiferis hypophyllis sparsis, minimis, epidermide circum- 

 vallatis v. semitectis; uredosporis obovatis, 15-20*10-14, epispo- 



rio hyalino echinulato donatis, paraphysibus clavatis circumval- 

 latis; soris teleutosporiferis amphigenis subepidermicis, melleis v. 

 cinnamomeis, parvis, sparsis vel confertis; teleutosporis 1-4 vel 

 plurilocularibus, 21-37 a. long., singulis cellulis 5-12 ix. latis, fla- 

 vidulis, apice non incrassatis. 



Hab. in foliis Castaneae vulgaris var. japonicae, Nikko 

 Japoniae (Nishida). 



2. Pucciniastrum Boehmeriae (Diet.) Syd. Ann. Mycol. 1903, p. 19, 1330 

 Uredo Boehmerice Diet. in Engl. Jahrb. XXVIII, p. 290 (1900). 



— Soris uredosporiferis hypophyllis, minutis, pallide ochraceis, 

 pseudoperidio hemisphserico inclusis; uredosporis ovatis v. ellipsoi- 

 deis, echinulatis, subhyalinis, 18-24 » 13-18; soris teleutosporiferis 

 hypophyllis, maculis indeterminatis brunneis insidentibus, sparsis 

 vel laxe aggregatis, subepidermicis, minutissimis, ochraceis vel 

 oehraceo-fuscis; teleutosporis plerumque 1-4-locularibus, vario 

 modo in cellulas divisis, 18-36 «14-20, hyalino-navescentibus, 

 levibus non incrassatis. 



Hdb. in foliis yivis Boehmerke bilobae, japonicae, spieatn- 

 multis locis, in Japonia. 



3. Pucciniastrum Kusanoi Diet. in Bot. Jahrb. 1903, p. 629. — Soris 1331 

 uredosporiferis hypophyllis sparsis, minimis, 8-9 a. diam., pseu- 

 doperidio hemispha^rico inclusis; uredosporis obovatis v. ellipsoi- 

 deis, 18-25« 13-17, episporio incolorato, echinulato prsedifcis; soris 



•26 



