Refugium Botanicum.] 
[Se]) tern her, 1870. 
TAB. 236. 
Natural Order Bromeliace.e. 
Tribe Tillai\^dsie.e. 
Genus Dyckia [Roem. et Schult. Syst. Veg. vii. 1195). Flores herma- 
phroditi. Perianthium ad basin 6-partitum, segmentis exterioribus 
brevioribus sepaloideis ovato-lanceolatis, diutine erectis, interioribus 
spatbulatis corollinis limbo concavo lato flore expanse subpatulo. 
Stamina 0, sequalia, bypogyna, filamentis applanatis ligulatis sub- 
valvatis, periantbio brevioribus vel sequantibus, antheris dorsi- 
fixis lineari-oblongis. Ovarium superum, sessile, oblongum, trisul- 
catum, ovulis in loculo pluribus ; stylus brevis ; stigma trilobatum. 
Capsula carnosa, ovoidea, demum coriacea, septicide trivalvis. 
Suffrutices carnoso-coriacese brasilienses foliis rosulatis spinoso- 
dentatis floribus speciosis spicatis bracteis concavis persistentibus. 
D. BREYiFOLiA {HoTt.) FoHis 20 — 30 dense rosulatis lanceolatis 
quadruple longioribus quam latis e basi ad apicem acutum sensim 
attenuatis glaberrimis crassis rigidis facie subplano saturate viridi 
dorso convexo crebre albo et viridi striate, interioribus erectis, 
exterioribus falcatis, spinis marginalibus pro genere parvis, pedun- 
culo foliis 2 — 3-plo excedente, spica simplici subpedali 30 — 40- 
flora, bracteis lanceolatis acuminatis flore brevioribus, perianthii 
segmentis interioribus saturate flavis limbo semicirculari apiculato 
exterioribus sesqui longioribus, staminibus periantbio distincte 
brevioribus. 
A native of Brazil. 
Leaves densely aggregated in cffispitose sessile rosettes, twenty 
to thirty to a rosette, lanceolate, the young ones of the centre 
erect, the outer ones recurved, when fully mature about four 
inches long, an inch broad at the base, tapering gradually 
upwards to an acute point, a quarter of an inch thick in the 
lower part, rigid in texture ; the face bright green, nearly flat ; 
the back convex, marked with very fine distinct vertical stripes 
of green and white ; marginal spines cartilaginous, scarcely over 
half a line long. Peduncle two to three times exceeding the 
leaves, furnished with several scariose lanceolate flowerless 
bracts. Spike about a foot long, an inch and a half broad when 
expanded, with thirty to forty flowers. Bracts scariose, lanceolate- 
acuminate, three to six lines long. Sepaloid segments of the 
pei'ianth three to four lines long ; petaloid half as long again, 
bright yellow, with a semicircular concave apiculate limb. 
Stamens considerably shorter than the perianth. 
