514 C^OMACEI. 



On stems of Arundo ph^agmiiis. Autumn. 



** Forming thick bullate patclies several inches in length, occupying whole 

 internodes covered by their sheath. Spores larger than in U. hypodytes and 

 ?7. longissima" — B. dt Br. 



1528. Ustilago salveii. B.&Br. *' Cocksfoot Smut." 



Produced on the leaves, foraiing elongated parallel sori on the 

 "upper surface ; spores obovate, rather large, rough, with minute 

 granules.—^. ^- Br. Ann. N.H. no. 482. Cooke M.F. t. G,f. 117- 

 18. Cooke exs. no. 57. 



On leaves of Dactyles glomerata and other grasses. 



A distinct and interesting species, exhibiting in its spores the type of an 

 Uredo rather than of Ustilago. Spores four times as long as in U. longissima. 

 ^B.ctBr. 



1529. Ustilago grammica. B. d: Br. " Banded Smut." 



Forming little transverse bands, consisting of short parallel 

 black lines ; spores globose, very minute. — B. 4' -S?'- Ann. N.H. 

 no. 483. Cooke M.F. t. 6,f. 120-122. 



On stems of Air a aquatica and A. coespitosa. Eare. 



Forming little transverse fascise, consisting of short parallel black lines, 

 a line or more in length. Spores far smaller than in U. longissima, not ex- 

 ceeding one-third of their diameter. — Z>. d'^A 



1530. Ustilago vinosa. Tul, " Oxyria Smut." 



Produced on the swollen receptacles ; spores roundish, very 

 small, and minutely papillose, separately pellucid, in clusters, 

 violaceous. — Tul. Ann. Sc. Nat. (1847), vii.^. 96. Cooke M.F. p. 

 204. B.4' Br. Ann. N.H. no. 4.^4.. 



On the swollen receptacles of Oxyria reniformis. 



Spores smaller than in U, vArvculosa^ and merely papillate, instead of be- 

 ing reticulated. — B. <£• Br. 



1531. Ustilago utriculosa. Tul. " Utricle Smut." 



Produced in the germen and perigonium ; epidermis soon 

 ruptured ; spores effuse, minute, globose, purple-black. — Tul. 

 Ann.Sc.Nat.(l^\l), vii.;?. 102, f. 4, /. 2-6. Cooke, M.F. t. 6, f. 

 112-116. Cooke exs. no. 58. Uredo utriculosa, Corda. ii. /. 12. 

 Eng. Fl. v. p. 377. Nees.f. 6. 



On Polygonum hydropiper and other Polygona. Autumn. 

 Common. [United States.] 



