574 OROBANCHACEAE 
9. U. intermedia, Hayne. (Fig. 13, pl. 147.) FLAT-LEAVED BLADDER- 
wort. Flower scape with a few scales 2 to 10 in. high, bearing 2 to 5 
yellow flowers. Branches floating. Leaves with 2 ranks of flattened, com- 
pound linear leajlets. Separate stems bear numerous large air bladders. 
Pools, our area. June-Aug. 
10. U. fibrosa, Walt. (Fig. 11, pl. 147.) Fierous BLAppERwort. 
Flower scape 5 to 12 in. high, with a few small scales, bearing 1 to 6 
yellow flowers, the middle lobe striped with red. Branches floating. 
Leaves with few thread-like divisions, bearing bladders or not; bladders 
sometimes on separate branches. Shallow pools, Long Island and south- 
ward. June-July. 
1l. U. minor, L. (Fig. 10, pl. 147.) Lesser BLApDDERWoRT. Scape 
2 to 7 in. high, bearing 1 to 10 yellow flowers. Branches floating; leaves 
in 2 ranks, the leaflets short, thread-like. Bladders among the leaves, 
few or absent. Upper lip of corolla shorter than lower. Spur reduced 
to a broad flat protuberance. Shallow pools and ponds, our area. June- 
July. 
12. U. gibba, L. (Fig. 2, pl. 147.) Humpep BLAppERWorT. Scape 
1 to 5 in. high, bearing 1 or 2 yellow flowers. Branches floating with very 
few thread-like leaves, and few air bladders. The leaves root-like, buried 
in mud or rising above it. Corolla spur blunt and short. Shallow pools 
and ponds, throughout our area. July-Aug. 
13. U. biflora, Lam. (Fig. 3. pl. 147.) Two-FLOWERED BLADDERWORT. 
Scape 2 to 5 in. high. Branches long, floating. Leaf divisions few, hair- 
like, often bearing many bladders. Flowers 1 to 3 on the scape, yellow, 
the lips nearly equal. Shallow pools and ponds, eastern New England. 
2, PINGUICULA, L. 
‘Herbs, with leaves arising from the root and with slender, naked, one- 
flowered scape. Upper surface of leaves viscid. Corolla 2-lipped, the 
upper 2-cleft, lower 3-cleft; from the tube extends a long spur, extend- 
ing, generally, upward. Calyx 4- to 5-parted. 
P. vulgaris, L. (Fig. 15, pl.‘147.) Marsm Vioter. Leaves in a basal 
rosette, lance-shaped or approaching egg-shaped, blunt at apex, 1 to 2 in. 
long. Scape 2 to 6 in. high, smooth, bearing a single violet-purple nod- 
ding flower, the long spur pointing upward. Wet places, Vermont and 
northern New York. July-Aug. 
Famity VI.—OROBANCHACEAE. Broomrare FAMILY 
Parasitic herbs growing from roots of other plants. Fleshy, leaf- 
less, white, yellow or purplish-brown, with perfect 2-lipped flowers, 
solitary or several on the spike. Calyx 4- to 5-toothed, inferior to 
the ovary, nearly or quite equally divided. Corolla long tubular, 
the tube generally bending, lips 5-lobed. Stamens 4, unequal, in- 
serted in the tube and alternate with its lobes (a rudimentary 5th 
stamen completing the alternations). Ovary 1-celled, free from 
the calyx, seeds numerous. 
