88 Introduction to Botany. 



anthers becoming tubular above, sometimes awned on the back, open- 

 ing by terminal pores. Ovary 4-5-celled, or 8-io-celled by false 

 partitions. Fruit a many-seeded berry. 



i. Vaccinium corymb6sum, L. (Gr., korymbos, a cluster.) High-bush or 

 Tall Blueberry. Shrub, 6 to 15 feet high. Leaves mostly oblong-ovate or 

 elliptical. Flov^ers tubular, urn-shaped, appearing with the leaves, in short racemes. 

 Calyx 5-lobed-, corolla 5- toothed. Stamens 10. Berries blue, with a bloom, 

 pleasantly acid. In swamps and low thickets. 



2. Vaccinium Canadense, Richards. Canada Blueberry. Low-branching 

 shrub, 6 inches to 2 feet high. Leaves narrowly oval to elliptic-lanceolate, pubes- 

 cent at least beneath. Branches downy. Flowers oblong-campanulate, greenish 

 white, appearing with the leaves. Berries mostly blue, with a bloom. Swamps 

 and moist woods. 



3. Vaccinium Pennsylvanicum, Lam. Dwarf or Low-BUSH Blueberry. 

 Similar in general aspect to the preceding species, but branches and leaves nearly 

 or quite glabrous, the branches green and warty. Corolla white or pinkish, slightly 

 constricted at the throat. Berries blue, with a bloom, sweet. Dry hills or dry, sandy 

 soil. 



PRIMULACE.a;. Primrose Family. 

 Herbs, with simple leaves, which are mostly opposite or verticillate, 

 but sometimes alternate. Calyx, with rare exceptions, free from the 

 ovary, mostly 5-parted. Corolla gamopetalous, the limb usually 5-cleft 

 or lobed. Stamens as many as the lobes of the corolla and opposite 

 them, inserted on the tube of the corolla or at its base. Ovary i-celled, 

 with a free central placenta bearing many ovules. 



I. PRIMULA. Primrose or Cowslip. 

 (Latin diminutive ^i primus, first, alluding to early flowering.) 



Perennial herbs, with leaves clustered at the base, and flowers often 

 borne in umbels at the end of a scape. Corolla salver-shaped, the tube 

 often enlarging above the insertion of the stamens, 5-lobed, the lobes 

 mostly notched or obcordate. The five stamens not exceeding the tube 

 of the corolla. Ovary superior, oblong, ovoid, or globose ; style filiform, 

 and stigma capitate, dehiscing at the apex into 5 valves or 10 teeth. 



I. Primula Sinensis, Sabine. (Latinized form, relating to China.) CHINESE 

 Primrose. Cultivated in greenhouses, etc. Flowers showy, white, purple, or 

 pink. Lobes of the corolla sometimes cut-fringed. Plant downy; leaves variously 

 cut or crisped. Calyx inflated. 



^. Primula grandiflora, Lam. (L., ,f?-iz»(/«>, large ; y?oj, _;?t)W,i, flower.) True 

 Primrose. Cultivated from Europe. Sulphur-yellow flowers rising on slender 

 pedicels from the axils of basal leaves, no proper scape being developed. Corolla 

 flat. Leaves somewhat hairy on their under sides. 



