TO SOUTH-AFRICAK BOTANY. 77 



arcuato-porrecto, basi intus minute tuberculato, labio postico bre- 

 viori, lineari, angustissime cjmbiformi, obtuse, utrinq^ue ala late 

 triangular! hjalina decurrente instructo. Ex exempli. 2 exsicc. 

 ut infra, 



Ilah. In lat. australi mentis Currie supra cataractam, ditiene 

 G-riqualand East, C. B. S., alt. circa 5500 pad., fler. Eebr., legit 

 IV. Tyson ]S"o. 1603! in herb. mee. Natal; heights above Kar- 

 kloof, J. SandersoK No. 1071. Kaffraria ; mountains, in rather 

 damp localities, Jlrs. Barber No. 28; Bazija mountain top, 

 4000 ft. alt., fl. Feb., Baur No. 813. 



The species is characterized by its long, narrow, shallow, and 

 taper-pointed back sepal, and by the shape of its labellum. It 

 comes near to D. TFealii, lieichb. f.*, and the habit is similar. 

 It differs from that by its more robust habit, larger and mere 

 taper-pointed flowers, by the anterior lobe of its labellum being 

 longer (not shorter) than the posterior lobe, and by the posterior 

 lobe beiug winged and diff'ercntly shaped. In the dried state it 

 might easily be confused with it. 



DisPEKis Macowani, Bolus^ n. sp. (PL I. figs. 13-17.) Erecta, 

 pusilla, 9-15 cm. alta ; folia duo, patula, ovata acuta, cordato- 

 amplcxicaulia, ciliolata, obscure reticulato-venosa, ex sicco sub- 

 membranacea, 1'2-1'5 cm. louga, 1'0-1'4 cm. lata, infimum nunc 

 humistratum, nunc caulinum, internodio 2-3 cm. longo ; scapus 

 pergracilis, 1-florus, hispidulus, bractea foliacea, foliis conformi, 

 6 mm. longa, ovario breviori ; sepalum dorsale galeatum, 6 mm. 

 altum, apice acuto porrecto ; sepala lateralia ambitu lanceolata, 



[In habit and general appearance this species appears to me far more 

 nearly to resemble I), paludo^a, under which name it has been distributed b}^ 

 Mr. Baur, but is readily distinguishable from that species by its larger flowers, 

 more acuminate galea, and a very diflferent lip. The flowers are purple with 

 some green warted spots on the petals. Of this species I have made fresh 

 drawings of analyses, and substituted for those originally sent by Mr. Bolus. 

 Figs. 6, 8, 9, 11, & 12 were made from Mr. Bolus's type specimen (Tyson 1603), 

 which he kindly sent to Kew for my inspection, and figs. 7 and 10 were drawn 

 from Baurs specimen iN"©. 813, which exhibits a decided diff'erence in the shape 

 of the dorsal sepal, although the lateral sepals aud lip are the same as in Tyson^s 

 plant. Sanderson s and Mrs. Barber's specimens are also like that of Baur, but 

 as I do not notice anj other difference, I think they can scarcely be regarded in 

 any other light than as conspecific with Tyson's plant. The dorsal sepals are 

 shown sideways and pressed flat. The petal, fig. 10, is shown with its claw in its 

 natural position, whilst in 9 it is pressed flat in a hue with the limb, which is 

 shown pressed flat in both 9 and 10,— N. E. Brown, Kew.] 



