-. a 
68 
RIGIDELLA immaculata. 
Spotless Stiffstalk. 
MONADELPHIA TRIANDRIA. 
Nat. ord. IgiDACE#. 
RIGIDELLA. Botanical Register, 1840. t. 16. Obs. Sepala ungue 
cymbiformi recto dextrorsum (a germine aspicienti) imbricante lamina reflexa; 
petala valdé minora recta ungue brevi lineari lamina latiore ; antheree in co- 
lumné staminea sessiles stigmatum tenuium lobos binos interposite loculis 
lateralibus. Flores penduli postmeridiani fugaces, ab hora nona cire. ad 
primam noctis patuli. W. H. 
R. immaculata; sepalis acutis 13 unc. longis coccineis ungue pallidiore, pe- 
. . . . A . 
talis luteis lamina cordat& acuminata, column4 staminea superne grada- 
tim minore, antheris acutis inferne latis stigmata tenuia sequantibus, 
polline luteo. Herbert in Bot. Reg. 1841. misc. no. 133. 
otanical peculiarities of this curious 
at t. 16 and no. 64 of the Register for 
1840, stated all that appears necessary. It is only requisite 
now to add, with reference to the species before the reader, 
that its bulbs have been sent to the Horticultural Society 
from Guatemala by Mr. Hartweg. 
It differs from the original species in having much smaller 
flowers, not spotted, and narrower leaves ; otherwise they are 
nearly the same, except that this is the more slender and dwarf 
of the two. 
Both are half-hardy bulbs, requiring exactly the same 
management as the Tigridia, to which they are very nearly 
allied. 
Figure 1. represe 
stamens and stigmas, 
Concerning the b 
genus, I have already, 
nts the ovary, petals, staminal column, 
as seen when the sepals are removed. 
December, 1841. 
