1924] REHDER, NEW SPECIES, VARIETIES AND COMBINATIONS 55 



with less thickened sutures; the leaves are deciduous and glabrous or 

 pubescent. This section contains only one variable species native to the 

 eastern States of North America distributed from Maine to Florida and 

 Louisiana. The sectional names Lyonia and Eulyonia cannot be used, 

 as these sections do not contain the type of Lyonia which is L. ferruginea 

 G. Don and belongs to the preceding section. 

 Sect. III. Maria, comb. nov. 



Andromeda Linnaeus, Spec. 393 (1753), in part. 



Lyonia D. Don in Edinb. N. Phil. Jour. xvn. 159 (1834), in part. 



Leucothoe sect. II. Maria De Candolle, Prodr. VII. 602 (1839). 



Andromeda § Maria Gray, Man. 26G (1848). 



Andromrda § Pieris Gray, Man. ed. 2, 254 (1856). 



Lyonia subgen. Pieris K. Koch, Dendr. n. pt. i. 116 (1872), excl. L. pulveru- 



lenta. 



Pieris sect.4 Maria Bentham & Hooker, Gen. PL n. 588 (1876). 



Lyonia Untergatt. V. Maria Drude in Engler & Prantl, Nat. Pflanzenfam. 



iv. abt.i. 44 (1889). 

 Neopieris Britton in Britton & Brown, 111. Fl. ed. 2, n. 690 (1913). 



Desmothamnus Small, Shrubs Florida, 96 (1913). 



This section, the type of which is Andromeda mariana L. - X. mariana 

 Rehd., is chiefly characterized by the flowers borne in axillary clusters on 

 the branches of the previous season, by the appendaged filaments, the 

 ovoid or globose-ovoid capsule with prominently thickened sutures; the 

 leaves are entire, persistent or deciduous and glabrous, rarely puberulous 

 or pubescent. The two species are native of eastern North America 

 and are distributed from Rhode Island to Florida and Louisiana; one of 

 the species is also found in Cuba. 



Sect. IV. Pieridopsis, nom. nov. 



Andromeda Wallich in As. Research. XII. 391 (1820). 



Pieris D. Don in Edinb. New Philos. Jour. xvn. 159 (1834), as to P. ovalifolia. 



Pieris sect. Eupirris Bentham & Hooker, Gen. PI. II. 588 (1876). 



Lyonia subgen. Pieris Drude in Engler & Prantl, Nat. Pflanzenfam. iv. abt. I. 



44 (1889). 



This section, the type of which is Pieris ovalifolia (Wall.) Don - X. 

 ovalifolia Rehd., is characterized by the flowers borne in axillary and 

 terminal on-sieded usually elongated racemes, by the less strongly thick- 

 ened sutures and the usually appendaged filaments (without append- 

 ages in X. villosa Rehd.); the leaves are entire, persistent or deciduous and 

 glabrous or more or less pubescent. The species of this section are all 

 Asiatic and distributed from Kashmir through the Himalayas to western 

 and eastern China, to central and southern Japan and to Formosa. The 

 sectional names Pieris and Eupieris cannot be used, as they do not contain 



the type species of Pieris which is P. formosa Don and belongs to a distinct 



genus 



Andromeda glaucophylla f. latifolia, comb. nov. 



Andromeda polifolia a. latifolia Aiton, Hort. Kew. n. 68 (1789). — Pursh, 

 Fl. Am. Sept. i. 291 (1814), as 0. latifolia.— Loddiges, Bot. Cab. VI. t. 546 

 (1S21). 



