A New Rust on Finschia chloroxantha in New Guinea.

Abstract

Urediis hypophyllis, laxe aggregatis vel sparsis, usque ad 1 mm. diam., cinnamomeobrunneis, pulverulentis, paraphysibus nullis ; urediosporis (23-) 27-33(-35) x (30-) 33-40(-45) micron, globoideis vel late obovoideis, membrana (1.5-)2(-3) micron crassa, aureo- vel cinnamomeo-brunnea, ad apicem (5-)7-12(-15) micron crassa et pallidiore, valde aculeata ; poris germinationis 2(?) vel 3, equatorialibus. Teliis urediis conformibus sed compactis ; teliosporis (24-) 26-30(-33) x (40-)44-55(-58) micron, plerumque oblongo-ellipsoideis, membrana 1-1.5(-2) micron crassa, ad apicem 5-8 micron crassa, pallide aureau, levi ; pedicello hyalino, fragili, usque 50 micron longo ; statim a maturitate germinantibus.