. 247 



3. C. umtrrosa Beyrich : stem low, branching ; flowers 5-parted, some- 

 what pedunculate, at length in spikes ; corolla campanulate, longer than 

 the obtuse calyx-segments ; stamens as long as the limb ; scales pinnatifid- 

 laciniate, convergent. ( Torr. N. Y. PL} 



Western part of N. Y. Dr. Gray Distinguished from the preceding by the 

 more open campanulate corolla, which is destitute of pellucid glands, and the 

 form of its lobes as well as those of the calyx. Torr. 



Smooth-flowered Dodder. 



ORDER LXXXVIL DIAPENSIACE^E. DIAPENSIADS. 



Calyx of 5 imbricate sepals, with 3 bracts at the base. Co- 

 rolla somewhat salver-form, 5-lobed. Stamens 5, equal ; fila- 

 ments petaloid. Ovary superior, 3-celled ; style single, con- 

 tinuous ; stigma sessile. Capsule membranous or papery. 

 Seeds pitted, with a very small embryo in a mass of fleshy 

 albumen, Prostrate under-shrubs, with small densely imbri- 

 cate leaves and solitary terminal flowers. 



DIAPENSIA. Linn Diapensia. 



(Said to be an ancient Greek name for the Sanicle, applied to this plant by 

 Linnaeus.) 



Calyx with the sepals unequal, smooth. Corolla 5-lobed. 

 Stamens 5. Filaments broad-linear, inserted into the throat of 

 the corolla. Capsule 3-celled, 3-valved, many-seeded. 



1. D. Lapponica Linn.: cespitose; leaves spatulate, smooth; flower 

 terminal, solitary, on a short peduncle; anthers simple. D. obtusifolia 

 Pursh. 



Summits of the White Mountains, N. H., and of Mount Marcy and Mount 

 Mclntyre, N. Y. N. to Labrador and Arct. Amer. June, July. 7J.. Stems 

 short, forming thick firm tufts, densely covered with small fleshy evergreen 

 leaves. Flower white. Lapland Diapensia. 



2. D. barbulata Ell. : leaves lanceolate-wedgeform, pubescent at base : 

 flower solitary, terminal, sessile ; anthers horizontal, beaked at base. D. 

 cuneifolia Pursh. Pyxidanthera barbulata Mich. 



Pine barrens. N.J. to Car. May, June. 1].. Plant small, creeping, form- 

 ing dense mats ; branches assurge-nt, 1-flowered. Upper leaves crowded near 

 the base of the flower, which is small and white. Very abundant in New Jersey. 



Beaked Diapensia. 



ORDER LXXXVIII. B OR AGINACEJ5. BORAGE WORTS. 



Calyx- persistent, 5-divided. Corolla 5-lobed, generally reg- 

 ular, and sometimes with a row of scales in the throat. Sta- 

 mens 5, inserted in the corolla and alternate with its lobes. 

 Ovary 4-parted ; style simple ; stigma simple or bifid. Fruit 

 Consisting of 4 little nuts or achenia. Seed without albumen. 



