loith descriptions of some new species. 181 



Vescr. — This species grows in shallow water, on the borders of 

 ponds. The base of the stem sends out into the soil many branch- 

 ing, white, filiform roots, which have a few white, transparent 

 bladders, and send up a great number of erect, green, filiform, taper- 

 ing shoots, above the surface of the soil. These shoots, which are 

 probably al)ortive stems, are an inch or more long, and have distant 

 partitions like joints. Stem erect, six inches or more high, slender, 

 l)ut i)retty firm and stiff, with two opposite broad scales an inch be- 

 low the top. Flower terminal, single. Corolla rose or purple, with 

 a very long tube, and a rather short, obtuse, spur, which is very dis- 

 tant from the lip. The corolla being terminal, and the spur very 

 distant from the lip, it has a resupinate a))pearance at first sight, but 

 the corolla is set on to the peduncle as in other species of the genus. 

 I regret that my notes from the fresh plant are mislaid. 



This curious and pretty species was first found by B. D. Greene, 

 Esq., at Tewkesbury, iVIass., and afterwards by the botanists of 

 Plymouth, Mass., at Cook's pond, and other ponds in that town, 

 where I saw it in great abundance, in July, 1839. Utricularia cor- 

 nOta has frequently abortive stems, of the same kind as this species. 



Phaca Robbinsu". 



Descr. — Root woody, with a thick pale bark, long, thick, branching 

 and firndy fixed in the fissures of the ledges of rock, on which it grows. 

 Stems rather numerous, about a foot high, simple, erect, sometimes 

 a little decumbent at base, rather slender, slightly angular and groov- 

 ed. Stipules triangular-ovate, acute or obtuse, "2 — 3 lines long. 

 Leaves bluish green, paler beneath, 2 — 4 inches long, generally witli 

 4 or 5 pairs of leaflets, sometimes three or six. liCaflets opposite, 

 or nearly so, on petioles about a line long, oblong-elliptic, the termi- 

 nal one larger, and often inclining to obovate, all very obtuse, and 

 frequently emarginate. Peduncles about three, from five to ten inch- 

 es long, nearly erect. Raceme ovate, becoming oblong and loose, 

 12 to 20 flowered. Flowers horizontal, about six lines long, on very 

 short pedicels. Bractes oblong, obtuse, longer than the pedicels, but 

 not half as long as the calyx. Calyx tubular-campannlate, the teeth 

 triangular-ovate, acute, not one third so long as the tube, the two up- 

 per ones more distant. Corolla twice as long as the c.dyx, white. 

 Vexillum obovate, broadly rounded, and often emarginate at tip, the 

 sides moderately reflexed. Wings as long as the vexillum, oblong, 

 obtuse, on a linear claw not so long as the calyx, strongly auriculate. 

 Keel oblong, obtuse, not so long as the wings, on a broader claw, and 

 also auriculate. Stamens diadelphous, nearly as long as the corolla. 

 Anthers roundish, yellow. Ovarium lanceolate, tapering into the su- 

 bulate smooth style, which is as long as the stamens. Stigma yellow, 

 capitate, roundish, about twice as wide as the tip of the style. Le- 

 gumes dependent, pale brown, turgid, veined, scarcely coriaceous, 

 about an inch long, on a slender stipe about as long as the calyx, ob- 

 long, cymbiform, acute, tipped with the recurved persistent style, 

 the upper placental suture curved, the other suture straight. Neither 

 of the sutures are introflexed, though an almost imperceptible, thin, 

 narrow margin appears within the lower one. Seeds three to nine, 

 generally about six, on pedicels as long as themselves, brown, smooth, 

 minutely pitted under a lens, flatteiied, roundish, the hilum in a 



