\Q THE JOURNAL OF BOTANY 



(1. c), bear a very close resemblance to those of Boydia insculpta, 

 though the asci are said to be accompanied by long filiform para- 

 physes. Whether these two species are not more closely allied than 

 their present positions would indicate must be left to the future to 

 decide. 



PtfCCTNIA PEUCEDANI-rAIUSIENSIS (DC.) Lindr. 



In Massee's Mildews, Busts, and Smuts (p. 122) this species is 

 listed as British, but the specimens available to me for examination 

 in 1913 did nut show the true character, and consequently it was 

 omitted from my British Bust Fungi. Towards the end of August 

 last year, Mr. A. T. Rake, of Kew, 'collected Peucedanum officinale 

 near Whitstable, where it is abundant in a certain spot. On his 

 showino- me the plants, I pointed out that they bore a small number 

 of sori of a Buccinia, and on examination this proved to be the 

 species named above (fig. 2). Afterwards, on referring to Lindroth 

 (Act. Soc. Faun. Flor. Fenn. 1902, xxii. 79), I found that he had 

 received and records a specimen of the same fungus on P. officinale 

 from Feversham (misspelt "Tewersham") in Kent. 



This very rare parasite differs from its allies, P. bulla t a (Pers.) 

 Wint. and P. Oreoselini (Str.) Fckl., in having its teleutospores 

 striped with numerous narrow more or less parallel lines Or ridges, 

 which run lengthwise of the spore and occasionally branch or anas- 

 tomose : rarely these lines or striae break up into rows of delicate 

 warts. Those of P. lullata (which occurs on Peucedanum palustre *) 

 are quite smooth; those of P. Oreoselini are delicately verruculose, 

 but not lineate. 



To observe these characters well, a precaution may be needed. 

 As is well known, faint markings of this kind become difficult to see 



in water they must be examined in air. I have before me at the 



present moment a teleutospore of this Buccinia which happens to be 

 divided longitudinally by an air-bubble ; on the half in air the stripes' 

 are discernible with" ease, on the other half nothing is visible but 

 faint granulations which might be put down to the granular proto- 

 plasm within. # 



Pilomopsis abietina Grove in Journ. Bot, 1918, p. 293. 



Bhoma abietina Hartig, Diseases of Trees, 1888, p. 138, figs. 78-9 



(Engl. e<L). 



Bhomopsis pithya Lind, Dan. Fung. 1913, p. 421. 



In this Journal (I. c.) I suggested that Bhomopsis pithya Lind 

 was not identical with Bhoma pithy a Sacc. = Sclerophoma pitlnja 

 Died., as Lind asserted, but at that time it was impossible for me 

 (not 'having seen any satisfactory specimens) to give a decided 

 opinion. Since then I have received some excellent examples of the 

 Bhomopsis on dead Binus silvestris from Ayrshire, sent by Mr. D. 

 A Boyd, and also on Bseudotsuya Douglasii, kindly communicated 

 by Mrs. Alcock of the Pathological Laboratory at Kew, from Perth- 

 shire. These latter are parasitic on small branches of living Douglas 



* The locality which is quoted (British Bust Fungi, p. 193) for this fuugus 

 should be " Shapwick Bog, Somerset." 



