Britton : Cuban Plants New to Science 111 



Utricularia mixta Barnhart, sp. nov. 



Stems slender, horizontal, submersed, free-floating except at 

 the single point of attachment, up to I m. long, the older inter- 

 nodes 5-10 cm. long; leaves alternate, but forked from the very 

 base and thus appearing opposite, each fork pinnately decom- 

 pound with filiform segments, 10-20 cm. long, one fork usually 

 much more copiously bladder-bearing than the other; mature 

 bladders 1-1.5 mm. in diameter; scapes solitary, borne at alter- 

 nating nodes, erect, 8-25 cm. long, very slender, less than 2 mm. 

 thick, 6-12-flowered ; scales none, or sometimes 1 or 2, like 

 empty bracts, near the base of the raceme; bracts ovate, acute, 

 2-3 mm. long, concave and often sheathing the pedicels ; pedicels 

 3-8 mm. long, at first erect but strongly recurved at maturity; 

 calyx-lobes subequal, ovate, obtuse or acute, or the lower emargi- 

 nate, about 2 mm. long, slightly accrescent and spreading under 

 the mature fruit; corolla yellow, the upper lip subtriangular, 

 emarginate, about 3 mm. long and broad, the lower lip rounded, 

 truncate or slightly emarginate, broader than long, 5-7 mm. long, 

 10-12 mm. broad, the palate prominent, faintly 2-lobed, the spur 

 conic-subulate, porrect, slightly shorter than the lower lip ; ovules 

 numerous ; capsule spheric, 2-4 mm. in diameter, apiculate by the 

 remains of the stigma; seeds by abortion few, 7-10, flat, peltate, 

 winged all around, large for the genus, the body lenticular, about 

 2 mm. in diameter, the wing up to 0.5 mm. wide. 



Type collected on muddy borders of a lagoon, Vivijagua, Isle 

 of Pines, February 28-29, 1916 (Britton, Britton & Wilson 



15014)- 



In quiet water, Santa Clara, Pinar del Rio and Isle of Pines ; 



distributed by Wright as U. foliosa (2895) (true U. foliosa is 



Wright 2895a, distributed as U. foliosa oligospermia) ; Colombia ; 



Brazil. 



Family ACANTHACEAE 



Tubiflora Shaferi P. Wilson, sp. nov. 



Leaves basal, oblanceolate, runcinate-dentate, 2.5-5 cm. long, 

 0.8-1.3 cm. wide, deep-green and more or less densely pilose, 

 especially when young, short-petioled ; scapes 3-6 cm. long, slen- 

 der, clothed with appressed, imbricated, acute, scale-like leaves 3 

 mm. long ; spikes 1-2 cm. long, the bracts ovate, rigid, 3.5-4 mm. 

 long, 1.8-2 mm. broad, obtuse or acutish at the apex, not keeled 

 on the back, ciliate, appressed-pilose above within. 



Pinelands, Sierra Nipe, near Woodfred, Oriente (Shafer 



35fo) 



