68 MR. H. bolus's contributions 



oblongum ; petala lateralia subrhomLoidea, omnia obtusa basi 

 connata, patentia, vix 2 mm. longa; labellum galeatum obtusum 

 (apice non depresso iiec deflexo), ore latiore quam altioroj 2-2'5 

 mm.longiimjbasi saccis brevisslmis obtusisslmis auctum ; columna 

 brevis fere sessiIis,lobus posticus brevis, apice cmarginatus, bical- 

 losLis, stigma paryum convexiim semiorbiculatum ; rostellum tri- 

 angulare breyissimum ; antheroe loculi dissiti ; ovarium late ob- 

 longum margine utrinque bicostatum, costa antica et postica fere 

 obsoleta. (Ex exempli, plur. viy. sed floribus plerisque nimis 

 emarcidis, sub num. 5007! distrib.) 



Hah. In udis, Kleinpoort mentis AVinterboek Tulbagbensis, 

 alt. circa 30OO ped., Decembri, anno 1884, legit A. BodJcin- 



Flowers greenish with dull red markings. Very distinct from 

 any otlier species known to me by its slender weak habit, thin 

 spike, yery short sacs of the labellum, and nearly sessile column. 

 In floral structure it is yery similar to >S'. Lindleyamim^ mihi. 



DiSA TENuicoRNis, JBolus, n. sp, Erecta, glabra, 10-30 cm. 

 alta ; caulis foliosus vaginis imbricantibus obtectus ; folia laxa 

 linearia acuminata, basi laxe vaginantia, adscendentia, inferiora 

 6-9 cm, longa, interdum medio attenuata, superiora sensim minora, 

 basin spicse vix attingentia; spica subdcnsa longitudine e tertia 

 parte usque ad dimidium altitudinis plantae ; bracteoe ovatse, longe 

 cuspidatse, membranacese, reticulato-venosie, floribus subsequi- 

 longa? ; sepalum alterum posticum incumbens, galeatum, late 

 obovatum, obtusum, apiculatum, 15 cm. longum, 1 cm. latum, basi 

 bisacculatum, calcare recto subfiliformi inter saccules porrecto, 

 4-5 mm. longo; sepala lateralia falcato-ovata acuta, basi obliqua 

 deflexa, 1 cm. longa ; petala lateralia minuta, oblonga, lobo falcate 

 apice aucta, horizontalia, columns© adnata ; labellum subulutum 

 supra basin dilatatum, acutum, 1 cm. longum ; rostellum erectum 

 breve, integrum, glandulis polliniorum approximatis, utrinque 

 tuberculatum; anthera horizontalis ; stigma excavatum ; ovarium 

 cylindricum, 1'2 cm. longum. (Ex exempli, plur. yiv, sub nuui. 

 4967 distrib.) 



JIab. In rimis turfosis inter saxa in plauitie inferior! mentis 

 Tabularis juxta rivulum " Hout's Bay Stream " dictum, alt. 2500 

 ped., flor. Oct., legit II, Bolus, ^o. 4967 ! in Herb, Kew ; Mac- 

 Owan 2590 ! 



The colour of the flowers is mainly white, the galea spotted 

 with blood-red, and the sepals, labellum, and petals edged with 



) 



J 



