BLADDERWORT FAMILY 57] 
out black lines. Corolla yellow without the purple or dark spots on the 
lips. Mountains of Maine and New Hampshire and Adirondack Mountains. 
27. MELAMPYRUM, L. 
Erect herbs, annual, branching, with opposite leaves and flowers solitary 
in the axils. Calyx 4-toothed, the 2 upper longer. Corolla irregular, 
2-lipped with narrow tube, which is gradually enlarged toward the throat. 
Upper lip arched and flattened laterally. Stamens 4, unequal, under the 
upper lip. 
M. lineare, Lam. (Fig. 14, pl. 147.) Narrow-Leavep Cow-WHEAT. 
Downy, stem slender, obscurely 4-sided, 4 to 13 ft. high. Leaves opposite, 
lance-shaped to linear, tapering at each end, on short leaf-stalks. The 
leaves among the flowers with 4 to 6 conspicuous bristle-point teeth. Co- 
rolla yellowish-white on short flower stems. Dry woods, north and south 
in our area. 
FamMity V.—LENTIBULARIACEAE. Brapprerwort FamMity 
Flowers 2-lipped. Marsh or water plants without leaves or 
with mostly thread-like leaves at the root or the root leaves some- 
times broad. Flower scapes erect. Flowers solitary or in few- 
flowered clusters, terminal, on short flower stems, at the foot of 
each being a small bract. Calyx below the ovary, 2- to 5-parted. 
Corolla 2-lipped, the throat closed. Stamens 2. Ovary 1-celled. 
Banaie or bor plants... °°. °°.) 5°.” . 4 Utricularia 
Memresunal plantf= . . ..1. so. oS Se  @ Pemguenia 
1 UTRICULARIA, L. 
Mostly aquatic herbs, floating free in the water or rooting in mud. The 
floating species with branching spreading stems with finely dissected leaves 
and a scape, leaflets or with scale-like leaves, bearing at the summit a few 
or several irregular flowers. In some species the thread-like leaves are 
bladder bearing, in others the bladders are borne on leafless stems. Also 
in certain species there are two kinds of flowers, the open flowers on the 
scape and a closed flower like a bulblet growing among the leaves. Calyx 
2-lobed; corolla 2-lipped, quite irregular, closed at throat, a spur or sac 
protruding from the corolla tube. 
Plants rooting in the mud, without dissected leaves and with or no air bladders. 
Flower scape very straight, leaves reduced to scales, flowers open. 
BlowerSurvcluowacercnt ts miele eit se vay cclete. Mel's of |: Ucomnuta 
Flowers purple . . . © « © © «© «© «© « « «© U, resupinata 
Mloweruscapemalee74e) tees) pil st ne sete? subtests: a) lp oak vole Ue ismoulara 
Flower scape hair-like, flowers without spur, closed, bulb-like U. cleistogama 
Plants floating or creeping in mud, the branches and finely dissected leaves 
floating. Air bladders numerous. 
Flowers purple . O 8 ob Oo pm so a 6 We ag ae 
Flowers yellow on leafless scapes. 
Whorl of dissected leaves on cylindric and inflated leai-stalks U. inflata 
eae and stem leaves spreading, the latter dissected and thread- 
like, 
