Eefuyium Botaiiicum.] [Sqotember, 1870. 
TAB. 233. 
Natural Order Liliace^. 
Tribe Aloine.e. 
Genus Haworthia, Duval. 
H. CooPERi (Baker). Acaulis, foliis 30 — 40 pro genere baud crassis in 
rosulam dense confertis oblongo-lanceolatis sesquiunciaUbus triplo 
longioribus quam latis longe aristatis palUde viridibus utrinque con- 
vexis in tertio superiore pellucido-vittatis apice pellucido, ad mar- 
ginem carinam et insigniter ad aristam setis pelbicidis patentibus 
ciliatis, exterioribus ascendentibus, pedunculo pedali, racemo 10 — 
12-floro modice dense, bracteis parvis deltoideis pedicelbs per- 
brevibus erecto-patentibus superantibus, perianthio albido purpureo- 
vittato Hmbo distincte bilabiate tube duple breviore. 
A native of Cape Colony, discovered by Mr. Cooper. 
Leaves tliirt}^ to forty in a dense sessile rosette which is two to 
two and a half inches broad by fifteen to eighteen lines deep, 
oblong-lanceolate, narrowed a little between the middle and the 
base and gradually upwards from the middle into a long awn, 
not more than an eighth of an inch thick in the centre, very pale 
green, both faces slightly convex, the upper third on both sides 
marked with pellucid ribs, the tip and awn (which is three to 
four lines long) entirely pellucid, the edge, keel, and especially 
the awn ciliated with patent pellucid setae. Inner leaves erect, 
outer ascending. Peduncle a foot long exclusive of the raceme. 
Floivers a dozen or more, moderately close. Bracts deltoid, two 
to three lines long, exceeding the very short erecto-patent pedi- 
cels. Perianth eight to nine lines long, white, with faint reddish 
streaks in the centre of the segments ; the distinctly bilabiate 
limb half as long as the tube. 
Intermediate between H. ti'anslucens, Haw., of the section 
Setatie (Salmdyck, Mon. sect. 12, fig. 1) and H. altilinea var. 
denticulata (Salmdyck, sect. 11, Limpidse, tab. 8 b). 
Tab. '233. — 1, leaf viewed from the back ; 2, the same from the side ; 
3, flower complete, with bract; 4, stamens and pistil ; 5, pistil; 6, hori- 
zontal section of fruit : all magnified. — J. G. B. 
A South African species, discovered by Mr. Thos. Cooper, 
after whom Mr. Baker has named the plant, and who well 
deserves the compliment for the energ}^ and zeal he evinced 
while acting as my collector in South Africa, and in sending to 
this country a large number of new and interesting plants. For 
treatment see Tab. 232.— TF. W. S. 
