Robinson and Greenman—Galapagos Flora. 139 
dried state; fascicled leaves numerous, 14 to 3 lines long, retuse.— 
Collected on Chatham Island, lower region, southwest end, by 
Dr. Baur, June, 1891. 
Forma Carouensis. Internodes from 3 to 5 lines long: leaves 
of the stem and branches 5 to 104 lines long, narrowly linear, 
not at all dilated but merely rounded at the tip, more slender 
petioled than the preceding forms.—-Collected on Charles Island, 
by Andersson, 1852. 
Forma BaRRINGTONENSIS. Closely approximating forma Albe- 
marlensis but having leaves commonly longer, 6 to 12 lines in 
length.—-Collected on Barrington Island, by Dr. Baur, July, 1891. 
Essentially the same form, although much paler, in the dried 
state, was collected on Bindloe Island by Dr. Baur, September, 
1891. 
Forma JERvENsIS. Internodes 34 to 6 lines long: leaves of the 
stems and branches narrowly linear, slightly dilated at the tip, 8 
to 13 lines long, half a line broad ; the fascicled leaves few and 
much shorter.-—-Collected on Jervis Island, by Dr. Baur, 1891. 
Chiefly distinguished from the other forms by its long narrow 
leaves, which in the dried state are very pale. 
Var. ABINGDONENSIS. Internodes from 5 to 10 lines long: 
leaves of stem and branches 10 to 15 lines long, linear spatulate, 
very gradually dilated, half a line broad near the base, 17 lines 
broad toward the rounded and indistinctly apiculate apex, pale 
above, whitened beneath.——Collected on Abingdon Island, by Dr. 
Baur, 1891. This form is so well-marked as to merit varietal 
rank. 
In specimens of HLuphorbia articulata Ands., collected on 
Charles, James, Albemarle and Bindloe Islands, no satisfactory 
formal or racial differences could be detected. The Acalyphas, 
with the exception of the new A. Bauriz, belong to a small 
group of closely related forms, regarded by Andersson as spe- 
cies; but by Miller Arg. these so-called species are reduced to six 
varieties of A. parvula Hook. fil. From accounts of previous 
collectors and from numerous specimens in Dr. Baur’s collec- 
tion, it appears that none of these species, as distinguished by 
Andersson, have a general distribution; while A. reniformis 
Ands., A. diffusa Ands., and the typical A. parvula Hook. 
fil. are each confined to a single island. The other species in 
essentially the same form occur upon two or more islands. 
In Amarantus sclerantoides Ands. a racial variation has 
been noted similar to that in Huphorbia viminea. The type 
of the former was collected on Charles Island by Andersson 
and has narrow linear Jeaves 34 to 8 lines long, scarcely a line 
broad, somewhat dilated at the apex. Two forms collected by 
Dr. Baur upon Chatham and Hood Islands differ perceptibly 
in foliage as follows :— 
