Tas, 8346. 
HOULLETIA Sanpert. 
Peru. 
ORCHIDACEAE. Tribe VANDEAE. 
HovuzteTia, A. Brongn.; Benth. et Hook. f. Gen. Plant, vol. iii. p. 550; 
Pfitzer in Engl. & Prantl Nat. Pflanzen/. vol. ii. pars 6, p. 168. 
Houlletia Sanderi, Rolfe in Gard. Chron. 1910, vol. xlvii. p. 206; Orch. Rev, 
1910, p. 118; species H. Lowianae, Reichb. f. proxima, sed labelli lobis 
lateralibus falcato-oblongis et obtusis nec longe acuminatis distincta. 
Herba epiphytica. Pseudobulbi conferti, ovoideo-oblongi, sulcati, 5-7 em. 
longi, circiter 2 cm. lati, monophylli. Folia breviter petiolata, oblongo- 
lanceolata, acuta, subplicata, recurva, circiter 30 cm. longa, 4 cm. Jata. 
— Scapus erectus, 25-30 cm. alta, vaginis lanceolatis acutis obtectus, 2-3- 
florus. Bracteae lanceolatae, breviter acuminatae, nigro-punctatae, circiter 
1‘5 cm. longae. Pedicelli 3-4 cm. longi. Flores magni, straminei, inversi. 
Sepala subpatentia, valde concava, posticum late ellipticum, apiculatum, 
circiter 3 cm. longum; lateralia late ovata, apiculata, circiter 3 cm. longa. 
Petala suborbicularia, subconcava, circiter 3 em.longa. Labellum profunde 
trilobum ; lobi laterales late falcato-oblongi, apice obtusi vel rotundati et 
leviter recurvi, 1:5 cm. longi, medio transverse carinati, fronte in dente 
obtuso extensi; mesochilium oblongum, truncatum, 1 cm. longum, car- 
nosum; epichilium obovato-oblongum, 1-5cm. longum, apice denticulatum, 
basi cuneatum, submembranaceum. Columna clavata, arcuata, circiter 
1‘8em. longum; pollinia 2, cerea, ovoidea ; stipes lineari-oblongus; glandula 
suborbicularis.—R. A. Rours. 
Three members of the South American genus //oulletia 
have already been figured in this work : /7. Brocklehurstiana, 
Lindl., a native of Brazil, at t. 4072; HH. picta, Linden and 
Reichb. f., a native of Colombia, at t. 6305; and H. Lands- 
bergi, Linden and Reichb. f., another Brazilian species, at 
t. 7362. The interesting species now depicted was imported 
from Peru by Messrs. Sander & Sons, St. Albans; there is 
an example of the species in the orchid collection at Kew. 
H. Sanderi flowered for the first time in Europe in January, 
1910, in the nursery of Messrs. Sander & Sons at Bruges; 
our plate has been prepared from the specimen then sent to 
Kew for determination. It is most nearly allied to 77. 
Lowiana, Reichb, f., another Colombian species, but differs 
considerably in the details of the lip, more especially in the 
very dissimilar side lobes. The Kew plant, which has not 
Novemser, 1910. 
