PE0FE9S0R OLIVER OK AFRICAN LENTIBULARIEiE. 155 



datis V. ovato-rotundatis. Corolla labio superiore calycis lobum su- 



perius paululo superante. A summo pedicelli ad apicem calcaris sajpius 

 circiter 2 lin. 



Welvvitscb, Iter Angolense, nos. 252-256. Huilla, '* inter Lopollo et 

 Rio Ema, in arenosis humidis dumetosis, ad 5200 ped. alt/M (252); 

 " frequentissima in pascuis pluviis vernalibus et autumnalibus inun- 

 datis," Humpata! (253). Pungo Audongo, **in spongiosis editis ru- 

 pium *Pedras de Guinga'"! (254); "in spongioso-paludosis prope 



Catete et Luxillo'M (255); "in arenosis parce berbidis ad 



lacum de Guibinda "! (257). 



The specimens from Catete and Luxillo have pale violet flowers, 

 the palate violet-purple, with the prominent yellow disk marked 

 by radiating purple striae, — raised lines or cellular papilla?, pro- 

 bably corresponding to which, are noticeable even in the dry 

 state. Perhaps the specimens included under these numbers 

 may belong to two or more species, but I fail at present to find 

 any marks of adequate importance by which they may be sepa- 

 rated and severally recognized. Colour, size of flower, and 

 the form of the apex of the upper lobe of the corolla (whether 



all liable to vary 



sometimes 



same gathering. Whether separated or kept together is not, I 

 believe, very important ; in either case they are very closely re- 

 lated. TT. exilis must be near to U, arenaria^ A. DC. ; but that 

 species is described with the spur equalling the lip of the corolla, 

 while in Z7. exilis it is two or three times as long. 



26. U. Sandersoni, sp. nov. FoUis rotundatis obovatisve gracillime 

 petiolatis, scapo gracilHmo (1-3-unc.) 1-2-floro, pedicellis brevibus 

 calycem a^quantibus, calycis lobis parum insequalibus, labio superiore 

 coroUae lilacinaj calycem 2-3-plo excedente erecto profunda bifldo^ 

 labio inferiore ample rotundato sinuato v. fere integro, calcari gracili 

 elongate cylindrico obtusiusculo labio inf. corollae longiore atque 

 lobum inferius calycis 6-8-plo excedente, seminibus minutis ovoideis v. 

 variis glabris. — Calyx lobo superiore majore rotundato, inferiore late 

 quadrato-rotundato apice obscure 3-lobulato. Ab apice labii sup. 



• corollae ad extremum calcaris 5-6 lin. 



On wet rocks near waterfalls. Port Natal, 1863, Sanderson in herb. 

 Trin. Coll Dublin ! " Flowers pale lilac." 



This species has rather the facies of the following section. 

 The seeds, however, are not appendaged, and the calyx-lobes arc 

 but slightly unequal. Whether the plant emits stolons or pro- 

 strate shoots I cannot tell. 



Viricularia Eckloniiy Sprengel (Syst. Veg- cur. post. 336) is so 



