Contributions to the African Flora. 151 



alt. 5,500 ft., Jan., Bolus! Orange Eiver Colony ; on the Mapede's 

 Peak, alt. 8,100-8,400 ft., Feb., Thocle, bib ! 



Colour of sepals pale green, petals white, lip white with faint 

 green stripes, the incurved tips of the appendage very dark green. 

 The specimens dry pale or yellowish, but these tips remain as two 

 dark oval spots and serve at once to distinguish the species in the 

 dried state. In habit and floral structure, especially by the form of 

 the lip and appendage (which latter is about four times longer than 

 the petaloid lip proper), it is allied to Pt. catholicum, Swartz, and to 

 Pt. acutifolium, Lindl., but is very distinct from either. It appears 

 to be rare, and only a few specimens were obtained by each of the 

 collectors. 



Pterygodium deflexum, Bolus, n. sp. (Orchidaceae-Disperidese). 



Pt. (§ Corycium, Schltr.) sepalo imparl obcuneato- oblong o, obtusis- 

 simo ; labello cuneato-unguiculato, subreniforme, bilobo, lobis divari- 

 catis, . appendice e basi lineari adscendente, apice biloba, lobis 

 abrupte deflexis subulatis acuminatis curvis, floris basin fere 

 attingentibus. 



Herba erecta, glabra, 12-20 cm. alta ; scapus validus, subflexuosus, 

 foliatus ; folia 4-6, erecto-patentia, e basi lata vaginante mem- 

 branacea linearia, acuminata, multivenia, 6-10 cm. longa, superiora 

 sensim minora ; spica sublaxe 5-20-flora, 4-7 cm. longa, 2 , 3-2*7 cm. 

 diam., floribus erecto-patentibus ; bracteae ovatse, acutse, membran- 

 acese, venosse, medio plicato-constrictse, floribus paulo breviores ; 

 sepala lateralia antica in laminam late ovatam deflexo-patentem, 

 0'75 cm. longam, coalita, lobis obtusis, marginibus leviter inflexis ; 

 sepalum impar obcuneato-oblongum, obtusissimum, 0*8 cm. longum, 

 cum petalis adhaerentibus saccum efformantibus, ore suborbiculari 

 0*9 cm. lato, basi bene gibbosum ultra apicem ovarii productum ; 

 labellum e basi cuneata unguiculatum, subreniforme, bilobum, # 5 

 cm. longum, apice 0-6 cm. latum, lobis divaricato-patentibus 

 obtusis, appendice erecta, carnosa, lineari, apice biloba, lobis 

 subulatis acuminatis, curvis, abrupte deflexis, floris basin fere 

 attingentibus. 



Hab. : Cape Colony (South-western Eegion), open hillsides, 

 Koudeberg, near Wupperthal, district Clanwilliam, alt. about 

 2,500 ft., fl. Oct. (1897), coll. H. Bolus, No. 8660. 



Very distinct by the lip-appendage, the dark green colour of 

 which forms a sort of band inside and close to the yellow petals. 

 The bracts and sepals are smoky-brown. The tubers and roots are 

 hairy. Twenty or thirty specimens were found growing together ; 

 and the species was drawn and described from life. 



