Dicotyls or Exogenous Plants. 95 



Schol'-le-ra ma-cro-car'-pon (Ait.) Britt. (Vacciniiiiu macrocarpon 

 Ait.) Large or American Cranberry. — Stems elongated, 1-4 ft. long; 

 leaves oblong, obtuse, less revolute, 4-() lines long. 



LXVII. Order PRIM - U - LA'-CE->E. PRIMROSE FAMILY.— Herbs ; 



flowers regular, symmetrical ; stamens opposite the petals ; ovary 1- 

 celled ; style and stigma undivided. 



Leaves opposite ; stem erect, simple ; flowers yellow Xaumbergia. 1 



Stem leafy only at the summit ; flowers white, star-shaped Tiietitalis. 2 



Leaves opposite ; plant spreading; flowers red, blue or white. . ./4wa^a///j. 3 



1. Genus NAUM-BER'-GI-A.— Corolla very deeply 5(or (i-7) -parted 

 into linear divisions, somewhat purplish-dotted, with a small tooth 

 in each sinus ; flower-clusters on axillary peduncles. 



Naum-ber'-gi-a thyr-si-flo'-ra (L.) Duby. [Lysimachia thyrsiflora L). 

 Tufted Loosestrife. — Flowers light yellow, in head-like or spike-like 

 clusters, with short peduncles from one or two middle pairs of the 

 leaves. 



2. Genus TRI-EN-TA'-LIS. — Calyx mostly 7-parted, the divisions 

 linear - lanceolate ; corolla mostly 7-parted, spreading; plant low, 

 smooth, with a whorl of thin veiny leaves at the summit. 



Tri-en-ta'-lis a-mer-i-ca'-na Ph. Chickweed Wintergreen. — Peduncles 

 one or more, bearing a delicate white and star-shaped flower. 



3. Genus AN-A-GAL'-LIS. — Calyx 5-parted ; corolla rotate, 5-parted 

 longer than the calyx; stamens 5, filaments bearded; leaves opposite 

 or whorled, entire ; flowers solitary on axillary peduncles ; plants low 

 spreading or procumbent. 



An-a-gal'-lis ar-ven'-sis L. Pimpernel. — Leaves ovate sessile; petals 

 obovate, fringed. , ■ /> :" ,- 



IvXVIII.'^^ EB-EN-A'-CE->E. EBONY FAMILY.— Tree, leaves alternate, 

 entire; flowers regular, dioecious or polygamous; frtiit a berry. 



1. Genus DI-OS-PY'-ROS.— Calyx and corolla 4-6-lobed; stamens 

 commonly 16 in the sterile and 8 (imperfect) in the fertile flower; tree 

 with alternate entire leaves. 



