TO SOUTH- AFRICAN BOTANY, 69 



tlie same colour, with, which also the ovaries, bracts, and rhachis 

 of the spike are more or less tinged ; leaves dark green. — This 

 is a very distinct species. In general habit it resembles luxuriant 

 specimens of D, talularisy Sond., but is readily di5>tinguished 

 from tljat by its twice larger flowers and the very peculiar thin, 

 nearly straight, intruscly set spur, which is different from that of 

 any other species known to me. I suppose it to be a somewhat 

 rarely flowering species, for though I have collected on that part 

 of Table Mountain and at that season for several years past, I 

 never saw it until Oct. 1884 ; and it is not to be found amongst 



Ecklon and Zeyher's and Dr. Pappe's Collections in the Cape 

 Government Herbarium. 



DisA ^MtJXA, Bolus, n. sp. Erecta, va!ida, glabra, l|-2 pedalis ; 

 scapus dense foliosus ; folia lanceolata acuminata, basi vaginantia, 

 margine ssepius undulata, erecto-patentia, inferiora 15-20 cm, 

 longa, superiora sensim minora in bracteas abeuntia ; spica mul- 

 tiflora, 22-30 cm. Ion ga, 2'5-3*5 cm. lata, bracteis hinccolatis acu- 

 minatissimis flores paulo superantibus ; sepala lateralia oblongo- 



falcata, acuta, 1'4 cm. longa, G mm. lata ; galea horizontalis, acuta, 

 apice emarginulata, 1*7 cm. longa, calcare filiformi patente apice 

 deflexo, 1*6 cm. Ion go; petala lateralia sub galea recoudita, falcata, 

 obtusa vel retusa, apice incurva, basi rotundata, incurva ; labellum 

 oblongum vel oblongo-lanceolatum, integrum, obtusum, patenti- 

 deflexum, 1 cm. longum, 3'0-3'5 mm. latum ; anthera resupinata; 

 ro:stellum breve; ovarium obtuse triangulare. (Ex exempli, 

 duobus vivis sub num. 4330 exsiccatis,) 



Mah. In planitiebus arenot^is prope Tygerberg, Nov., P. Mae 

 Oican {Bolus 4330! in herb. Kew) ; prope Groenekloof, Oct., 

 Bolus 4330 ! ; Salt Eiver prope Cape Town, W. H, Harvey 244 !, 

 in Herb. Kew. 



The sepals are usually a dull leaden blue, sometimes nearly 

 purple, the labellum dirty yellow variously marked with brown 

 patches or in the form of a large cross, the leaves glaucous green 

 with bands of red spots on the under surface near the base. The 

 species is closely allied to D, cornuta^ Sw., with which it has been 

 confused in herbaria, resembling that species in colour, habit, and 

 general aspect. The differences may be summed up as follows: 

 the spike of our plant though dense is usually narrower than in 

 D. cornuta\ the bracts are narrower and more acuminate ; the 

 galea is acute though minutely notched (not obtuse); the spur 



