Vol. hi.] 



DODDER FAMILY 



II. Cuscuta compacta Juss. Compact 

 Dodder. (Fig. 2966.) 



Cuscuta compacla Juss. ; Choisy, Mem. Soc. Gen. 

 9: 2S1. /. 4. /. 2. 184:. 



Plant yellowish white, stems rather stout; 

 flowers about 2" long, closely sessile in dense 

 clusters. Calyx of 5 (rarely 4) distinct oval 

 crenulate obtuse sepals, subtended by 3-5 sim- 

 ilar rhombic-orbicular appressed serrulate 

 bracts; corolla salverform, persistent, the tube 

 cylindric, its 5 1 rarely 4 1 lobes oblong or ovate, 

 obtuse, spreading, much shorter than the tube, 

 the scales narrow, one-half the length of the 

 tube, fringed with numerous long processes; 

 stamens included; styles slender, shorter than 

 or as long as the ovarj*; capsule oblong, envel- 

 oped or capped by the withering corolla. 



On shrubs, Ontario to southern New York and 

 Alabama, west to Kansas and Texas. July-Sept. 



12. Cuscuta paradoxa Raf. Glom- 

 erate Dodder. (Fig. 2967.) 



Cuscula paradoxa Raf. Ann. Nat. 13. 1820. 

 Cuscuta glomerata Choisy, Mem. Soc. Gen. 9: 



1S4. />/. 4. f. 1. 1S41. 

 Lepidanclie compositarum Engelm. Am. Journ. 



Sci. 43: 344. /. 30-35- 1842. 



Plant yellowish white, stems slender; flow- 

 ers sessile, I )^" long, exceedingly numerous 

 in dense confluent clusters covering portions 

 of the stem of the host-plant. Calyx of 5 

 distinct concave oblong obtuse serrulate 

 sepals, subtended by S-15 narrower .serrulate 

 much imbricated bracts with recurved tips; 

 corolla tube oblong-cylindric, its lobes ob- 

 long-lanceolate or triangular-lanceolate, ob- 

 tuse, spreading or recurved, persistent; scales 

 copiously fringed at the summit and sparingly 

 along the sides with numerous long pro- 

 cesses; styles 2-4 times as long as the ovary; 

 capsule capped by the withering corolla. 



On tall herbs, mainly Compositae, Ohio to 

 Minnesota, Missouri and Texas. July-Sept. 



Family 21. POLEMONIACEAE DC. Fl. Franc. 3: 645. 1805. 



Phlo.k Family. 

 Herbs, some species slightly woody, with alternate or opposite entire 

 lobed or di.ssected leaves. Flowers perfect, corymbose-capitate, cymose or 

 paniculate, regular, or nearly regular. Calyx inferior, tubular or canipanu- 

 late, 5-cleft, the lobes or teeth slightly imbricated. Corolla ganiopetalous, 

 funnelform, saucer-shaped, cainpaiuilate or rotate, the limb 5-parted, the lobes 

 contorted. Stamens 5, inserted on the tube of the corolla and alternate with 

 its lobes; filaments slender or filiform; anthers ovate, oblong or linear, versa- 

 tile, 2-celled, the sacs longitudinally dehiscent. Ovary superior, nio.stly 

 3-celled; ovules 2-co in each cavity, amphitropous; style simple, filiform; 

 stigmas 3, linear. Capsule mostly loculicidally 3-valved. Seeds various, some- 

 times winged, sometimes enveloped in mucilage and emitting spiral tubes when 

 wetted; endosperm present; embryo straight; cotyledons flat; radicle inferior. 



About 10 genera and 200 species, most abundant in Western America, a few in temperate 

 Kurope and Asia. 



Calyx distended and at length ruptured by the ripening capsule. 



Corolla salverform; leaves opposite, entire. i. Plilox. 



Corolla funnelform, tubular, salverform or canipanulate; leaves alternate or opposite. 



2. Cilia. 



