68 



RIGIDELLA immaculata 



Spotless Stiffstalk. 



MONADELPHIA TRIANDTtlA. 

 Nat. ord. Ibidace.e. 



RIGIDELLA Botanical Register, 1840. t. 16. Obs. Sepala ungue 

 cymbiformi recto dextrorsum (a germine aspicienti) imbricante lamina reflexa; 

 petala valde minora recta ungue brevi lineari lamina latiore ; antherse in co- 

 lumna staminea sessiles stigmatum tenuium lobos binos interpositee loculis 

 lateralibus. Flores penduli postmeridian! fugaces, ab bora nona circ. ad 

 primam noctis patuli. W. H. 



R. immaculata; sepalis acutis If unc. longis coccineis ungue pallidiore, pe- 

 talis luteis lamina cordata acuminata, columna, staminea superne grada- 

 tim minore, antheris acutis inferne latis stigmata tenuia requantibus, 

 polline luteo. Herbert in Bot. Reg. 1841. misc. no. 133. 



Concerning the botanical peculiarities of this curious 

 genus, I have already, at t. 1 6 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. represents the ovary, petals, staminal column, 

 stamens and stigmas, as seen when the sepals are removed. 



December, 1841. 2 u 



