APPENDIX. 195 



PUCCINI^I. 



a. Spores stipitate. 

 Spores multiseptate — 



moniliform . . . . . . . . Xenodochus. 



cylindrical .. .. .. .. Aregma. 



biseptate . . . . . . . , Triphragmium. 



uniseptate . . . . . . . . Puccinia. 



b. Spores immersed in gelatine. 



Stroma tremelloid and expanded . . . . Gymnosporangium. 

 clavate or club-shaped . . . . Podisoma. 



Xenodochus, Schl. 



Spores multiseptate, moniliform, breaking up into many distinct 

 articulations. — Berk. Outl., pp. 328. 



Xenodochus carbonarius, Schl. Btjenet Chain-Brand ; 

 scattered, in small tufts, hypogenous ; spores curved or straight, 

 composed of from 5 to 15 articulations ; obtuse at one extremity, 

 slightly attenuate at the other.— On Burnet. Very rare. (Plate 

 III. fig. 29.) 



Aeegma, Yi. ^ 



Spores cylindrical, multiseptate, scarcely moniliform, borne on 

 a long peduncle. — Berk. Outl., p. 329. 



Aregma mueronatum, Pr. Eose Brand ; hypogenous, 

 scattered over the leaves in minute tufts ; spores 5- to 7-septate, 

 terminal joint mucronate; peduncles incrassated below, fusi- 

 form. — On leaves of various Roses. Autumn. Prequent. (Plate 

 III. fig. 38.) 



Aregma acuminatum, Pr. Burnet Brand ; hypogenous, 

 scattered in minute tufts; spores multiseptate, terminal joint 

 acuminate; peduncles equal. — On Burnet leaves. July. Common. 

 (Plate III. tig. 32.) 



Aregma bulbosum, Pr. Bramble Brand ; hvpogenous, 

 with a dall red stain on the upper surface ; spores in large tufts, 

 4-septate, terminal joint apiculate ; peduncles incrassated, and 

 bulbous at the base. — On Bramble leaves. Autumn. Very 

 common. (Plate III. fig. 41.) 



Aregma sracile, Berk. Raspberry Brand ; hypogenous, 

 scattered, in small tufts ; spores 7- to 9-septate, the terminal joint 

 apiculate ; peduncles slender.— -On Raspberry leaves. Autumn, 

 (Plate 111. fig. 43.) 



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