=Æcidium Ari=, Berk. WAKE-ROBIN CLUSTER-CUPS; spots round, confluent; peridia circinating, not crowded, central ones abortive.—On leaves of _Arum maculatum_. Not common. June and July. =Æcidium Dracontii=, Schwein. ARUM CLUSTER-CUPS; spots pallid, extensively scattered over the leaves, sometimes nearly covering them; peridia large, scattered, abundant, disposed without order on the spots; spores orange.—On _Arum triphyllum_, in gardens. Melbury, 1863 (_Rev. M. J. B._) A North American species. =Æcidium Allii=, Grev. GARLIC CLUSTER-CUPS; spots pale; peridia circinating, not contiguous; spores yellowish.—On leaves of broad-leaved Garlic (_Allium ursinum_). June and July. ENDOPHYLLUM, _Lév._ _Peridium_ enclosed within the substance of the leaf, bursting irregularly. =Endophyllum Sempervivi=, Lév.; peridia immersed, elliptic or roundish; spores ochraceous, becoming brownish.—On leaves of Houseleek. PUCCINIÆI. _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. BURNET 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.) AREGMA, Fr. Spores cylindrical, multiseptate, scarcely moniliform, borne on a long peduncle.—_Berk. Outl._, p. 329. =Aregma mucronatum=, Fr. ROSE BRAND; hypogenous, scattered over the leaves in minute tufts; spores 5- to 7-septate, terminal joint mucronate; peduncles incrassated below, fusiform.—On leaves of various Roses. Autumn. Frequent. (Plate III. fig. 38.) =Aregma acuminatum=, Fr. BURNET BRAND; hypogenous, scattered in minute tufts; spores multiseptate, terminal joint acuminate; peduncles equal.—On Burnet leaves. July. Common. (Plate III. fig. 32.) =Aregma bulbosum=, Fr. BRAMBLE BRAND; hypogenous, with a dull 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 gracile=, Berk. RASPBERRY BRAND; hypogenous, scattered, in small tufts; spores 7- to 9-septate, the terminal joint apiculate; peduncles slender.—On Raspberry leaves. Autumn. (Plate III. fig. 43.)