THE SPECIES OF HIPPEASTRUM. 79 



SxENACHiENiuM CAMPESTEE, Bcikev, u. tiji. A perennial herb, with 

 a slender, creeping, woody rootstock, and erect 1-2-headed stems 

 about a foot high. Leaves mostly crowded near the base of the 

 stem, sessile, oblanceolate, enthe, obscurely pubescent, two to three 

 inches long. Stem winged in the lower half or two-thhds, the leaves 

 above the base small and few, the upper part especially clothed 

 with fine, short, spreading, whitish pubescence. Flowers in a 

 head, very numerous. Involucre nearly an inch in diameter, half 

 to five-eighths of an inch long ; the pale greenish -drab, closely 

 adpressed scales m many rows, the outer ones pubescent, the long 

 inner ones nearly glabrous. Achene, pappus, and corolla as in the 

 other species, both m character and size. 



Monte Video, in open plains, Arechavaleta, 4032 ! 



AN ENUMEEATION AND CLASSIFICATION OF THE 

 SPECIES OF HIPPEASTRUM. 



By J. G. Baker. 



In the present paper I propose to attempt to classify the species 

 of Hi]jpeastru77i as now known, understanding the genus in an 

 enlarged sense ; that is to say, so as to include, in addition to Hi})- 

 peastrum as chcumscribed in Kunth, Habranthus, Phycella and 

 Pihodophiala as defined in the same work, and Rhodolirioii as recently 

 defined by Philippi (' Linnasa,' vol. xxix., p. 65). Between these 

 there is no material difference in structure, and any groups that can 

 be devised are, in my view, of merely sectional value. The genus 

 is one of great horticultural interest, and our information about it 

 has been materially increased during the last generation. A great 

 many new species have been discovered, especially in Chili ; and 

 these have been described by Philippi in the * Linn^a ' and other 

 places. It will be seen that I have reduced in number very 

 materially the species known to Herbert and Kunth. The series 

 begins with dwarf, slender plants that touch so closely upon 

 Zephyrantlies that it is a point open to discussion where the exact 

 line of demarcation should be di'awn ; and as a rule, the stature of 

 the plant gets more robust, the leaves broader, and the flowers 

 larger as we proceed towards the end of the chain. Using the 

 term in this enlarged sense, Hippeastrum is a genus entirely 

 confined to tropical and warm temperate America, which differs 

 from the monotypic Cape genus AwanjUis solely by the seeds, 

 which in Amaryllis are few, large, and bulbiform like those of 

 Crinum, Hymenocallis, and Clivia, whilst in Hippeastrum they are 

 numerous and flattened, with a dark-coloured testa, as in 

 Zephyrantlies, PyroUrion, and Pancratium ; so that the two genera, 

 although they resemble one another precisely in flower, are placed 

 far apart in the classifications of Herbert, Kunth, and Sahsbury. 



Genus Hippeastrum {Herbert App. to Bot. Reg., 1821, p. 31.) — ■ 

 Perianth openly, or rarely narrowly funnel-shaped ; tube above the 



