RAM. 150, 151, 152. 119 



germinates in the ground and soon decays at the root, 

 after attaching itself to the host-plant by suckers." 



1. Flowers pedicelled. - Cuscuta, Love-rtnr 



C. arvensis. Filiform, pale yellow at first, deeper yellow later; flowers 5-parted 



in rather loose clusters, corolla-lobes acute; scales as long as the corolla-tube, fringed 



all around with short processes. Summer. 



C. Gronovii. Slender, yellowish, becoming orange; flowers 5-parted in dense 



clusters, corolla-lobes obtuse; scales as long as the corolla-tube, sparingly fringed 



with stoutish processes. Summer and Fall. 



150. Hydroleaceae, Waterleaf Family. 



Herbs, sometimes shrubby, with alternate or opposite 

 leaves and perfect flowers in cymes or scorpioid racemes; 

 calyx and corolla 5-lobed; stamens 5, adnate to the corolla 

 and alternate with its lobes; anthers versatile; ovary su- 

 perior, 1-2 celled; styles often partly united; fruit a capsule. 



Leaves alternate, flowers in cymes; calyx-lobes almost distinct; con- 

 rotate to campanulate; ovary 2-celled. styles distinct, Nama (Hydrolea) 



N. corymbosum Hydrolea corymbosa). Not spiny; leaves almost sessile; flow- 

 ers in corymbose clusters; calyx bristly, corolla azure-blue with yellowish 

 veins and five white spots near the base; stamens and style exserted. Ponds 

 and swamps. Summer. 



N. (H.) quadrivalvis. Spiny; leaves lanceolate, tapering into a petiole; flowers 

 in small axillary clusters and solitary near the top of the stem; calyx some- 

 what pubescent, corolla blue or lilac, stamens included. Muddy places. 

 Summer. 



151. Polemoaiaceae, Phlox Family. 



Herbaceous or shrubby plants with alternate or oppo- 

 site leaves and paniculate or corymbose flowers; sepals 

 5. partially united; corolla 5-lobed, regular; stamens 5, 

 often unequal, adnate to the corolla-tube; ovary 3-celled 

 with united styles and 3 stigmas; fruit a 3-celled capsule 

 with one or more seeds in each cell. 



1. Leaves often alternate, pinnately parted into linear lobes; c xoth funnel- 

 form. - ---------- Gil ia 



G. rubra (coronopifolia). Stem tall, leafy; flowers scarlet or yellow, and red 

 inside, in a raceme or narrow panicle; calyx campanulate. Sandy soil. 

 Summer. 

 1. Leaves chiefly opposite, entire; cor rform. - - - - Phlox 



P. Drummondii. Plant pubescent to villous; leaves mostly alternate, lanceo- 

 late to oblong; calyx-lobes bristle-pointed, revolute; corolla of all slu 

 white to purple, without or with a star. Cultivated and escaped. 



152. Solanaceae, Potato or Nightshade Family. 



Herbs, shrubs or vines with alternate, mostly exstipu- 

 late leaves and usually 5-parted. rarely 4 or parted flowers; 



