176 BARON FERDINAND VON MUELLER. 



could now be more fully studied. The leaves attain occasionally 

 the length of one inch. The fruiting calyx may gain a length of 

 nearly % inch, as the upper lobe becomes finally somewhat enlarged 

 like in Euthales. The corolla is dark-purplish, outside beset with 

 short hairlets ; its lobes are almost unilateral, nearly equal, semi- 

 lanceolar, and have no lateral expansions ; thus the corolla is 

 comparable to that of Selliera, with which genus our plant accords 

 also in the stigma-cover, so far as the absence of cilia around the 

 opening is concerned, but the indusium bears elongated very subtle 

 hairlets outside downward. The capsule is bi valvular and im- 

 perfectly septate. The seeds are very minute, lenticular-biconvex, 

 brownish, shining, smooth and devoid of any marginal expansion, 

 thus resembling to some extent those of G. purpurescens. The 

 habitual similarity of this plant is with Calogyne purpurea, with 

 which species it shares also in the colour of the corolla, and in 

 sometimes also forming short stems. 



Utricularia capilliflora. 



Annual, minute, glabrous ; leaves all radical, spatular-oval, 

 long- or short-stalked, sometimes undeveloped ; stem solitary, 

 finely capillulary, constantly one-flowered : bract basifixed, clasp- 

 ing, blunt, very much shorter than the pedicel ; bracteoles rather 

 narrow, acute ; lower sepal slightly bifid ; upper entire, very con- 

 cave ; carolla lightly reddish-brown, the upper portion produced 

 into two erect comparatively much elongated capillulary segments, 

 the lower portion much shorter, fringed by several extremely 

 narrow segments ; descending protuberance turgid, blunt, about 

 as long as the lower sepal or a little longer ; ovules numerous. 



On the Adelaide River ; Mr. Holtze junior. Height 1-3 

 inches. Root-fibrils very short and thin. Leaves -| inch long or 

 even often dwindling to -^r inch. No empty bracts or bracteoles 

 on the stem. Upper portion of the corolla often fully J inch long 

 and occasionally reaching § inch. Fruit not known. 



This is one of the most delicate of all vascular plants within 

 the whole range of our knowledge. The average-weight of a dried 

 specimen is only about '00617 of a grain, and the fresh plant 

 would likely not weigh very much more. The two long hairlet- 

 like segments, of which the upper portion of the corolla mainly 

 consists, are quite exceptional in the genus. 



U. Singeriaiia has the fruit spherical, measuring \- \ inch ; 

 the seeds are brownish, shining, almost linear-cylindric, about four 

 times longer than broad, striolate but otherwise smooth and at 

 both ends truncate. U. leptroplectra has the mature seeds dark- 

 brown, from a little longer than broad to twice as long, reticular- 

 foveolate and at both extremities truncate. 



(To be Continued.) 



