Tas. 6294. 
DYCKIA rricrpa. 
Native of Brazil. 
Nat. Ord. Bromettacra:.—Tribe Povurretize. 
Genus Dyoxta, Schult. fil. (C. Koch in Append. iv. ad indic. Sem. Hort. Bot. Berol. 
ann. 1873). 
Dycxia frigida ; acaulis, robusta, foliis dense rosulatis patenti-recurvis e basi 
13-2-pollicari_ ad apicem pungentem sensim acuminatis concavis supra 
viridibus lucidis subtus striolatis glaucis marginibus et subtus apicem versus 
spinis corneis remotis uncinatis onustis, scapo 2-pedali robusto bracteato, 
bracteis ovato-subulatis spinoso-acuminatis, panicula pedali robusta furfur- 
aceo-tomentosa griseo-brunnea ramis basin versus nudis, floribus subcon- 
fertis, bracteolis ovato-subulatis acuminatis flores equantibus, sepalis oblongis 
obtusis furfuraceis viridibus, petalis late unguiculatis lamina late ovata 
obtusa ochracea, filamentis crassis cum petalis basi in tubum connatis, 
antheris oblongis incurvis, ovario angusto, stigmatibus brevibus, capsule 
perianthio duplo longioris carpellis liberis loculicidis. 
Povrretta frigida, Hort. Lind. 
I advance this as a new species with much hesitation, having 
no better means of discriminating the species of this diffi- 
cult genus than is afforded by C. Koch’s Conspectus, quoted 
above, from which it would appear to be allied to the D. 
remotiflora, Ott. and Dietr., and D. altissima, Lindl. Bot. Reg. 
1841, Mise. p. 84, (erroneously cited as gigantea, by Le- 
maire), from both of which it differs by its almost free 
filaments (not attached to the length of the claw of the 
petal). From D. Princeps, Lemaire (Ill. Hort. t. 224-5), it 
appears to differ in the smaller flowers and longer sepals, but 
it is certainly very closely allied both to that plant and to 
those above mentioned. 
The species of Dyckia are mostly Brazilian, and some of them 
come from the colder southern provinces. This is probably 
the case with the accompanying plant, which flowered freely in 
the cool half of the succulent house, at Kew, in February 
of the present year, and is now maturing its capsules. It 
Was received from Messrs. Linden, under the name of 
Pourretia frigida. 
MAY Ist, 1877. 
