MTCOLOGICAL NOTES 313 



Pucctnia anthoxanthi Fckl. Symb. Myc. Nacht. ii. 15. 

 Uredosori much the same as in JJredo anthoxantliina Bub., but 

 fewer and narrower. Uredospores ellipsoid or subovoid, brownish- 

 yellow (without bright yellow contents), rather coarsely echinulate 

 (distance apart of the spines 2-2^/x), provided with about 3 germ- 

 pores, 22-2(5 x 15-20 n ; no paraphyses. Teleutosori on the stems 

 and sheaths, inconspicuous, similar to the uredosori, but not so erum- 

 pent; teleutospores oblong, obovoid, or subpyriform, obtusely rounded 

 above, pale brown below, thickened at the apex (4-6 /i) and dark 

 chestnut-brown, gently constricted, attenuated or rounded below, 

 32-35 X 18-22 j.i ; pedicels persistent, up to 20 /j. long, rather stout 

 (4-6 u), faintly coloured but always dark chestnut at the summit 

 just below the spore ; mesospores intermixed, numerous, similar in 

 colouring, but paler, about 25 x 18 ^u. 



On Aiithoxaiithum odoratum. Aberystwyth (MissK. Sampson). 

 June. 



Uredospores, mesospores, and teleutospores often occurred in the 

 same sorus. This is exactly the species described by Puckel, Sydow, 

 and McAlpine, and can hardly be confounded with the preceding. 

 It will be noticed that Miss Sampson was successful in finding both 

 species at Aberystwyth. 



Ureuo ammophilijsa Kleb. u. Lind. in Flor. Mark Brand. Pilz. 

 va, p. 882, fig. Y 4. 



Uredosori scattered in short series in the grooves of the upper 

 side of the leaf, at first covered by the inflated epidermis, then naked, 

 orange. Uredospores oval, 27-29 x 21-26 /j ; membrane pale yel- 

 lowish or colourless, lg n thick, echinulate (distance apart of the 

 spines \k-2 fx), with 6-7 rather distinct scattered germ-pores; cell- 

 contents bright orange; paraphyses capitate, 65-90 x 14-21//, with a 

 thin pale yellowish membrane, scattered through the spore-laj-er, or 

 more rarely not present. 



On leaves of Ammopliila arenaria. Borth. May-July. This 

 fundus was first brought to my notice by Dr. Jessie Bayliss Elliott : 

 when the leaves are in the rolled-in state, the sori are of course com- 

 pletely concealed. 



There is another similar fungus recorded on Ammopliila, viz. 

 IT. ammopliila Syd. in Hedwig. 1900, xxxix. 121, from the Isle of 

 lUigen. This is said to have no paraphyses, the cell- wall is thicker 

 (2-6 \x), and the spines more distant; moreover, the sori are described 

 as being hypophyllous (never epiphyllous) and as usually occupying 

 the whole of the surface. Both Uredos are unattached, no teleuto- 

 sori having been yet discovered. Even on the dead Ammopliila 

 Sydow found no teleutospores, but, as the uredospores resemble those 

 of Rostrupia Elymi (which occurs on the same beach at Kiigen), 

 he suggests that this also may be a Rostrupia^. Klebahn and Lindau 

 state (I. c.) that the host of this fungus at lliigen is not A. arenaria, 

 but A. baltica, which they speak of as a cross between A. arenaria 

 and Galamagrostis. 



Since our specimens of IT. ammopliilina often show sori con 

 taining absolutely no paraphyses (but otherwise identical) on the 



