54 TILIACE.E. (LINDEN FAMILY.) 



bryo in the axis of fleshy albumen. Herbs or shrubs, with alternate leaves, 

 and small flowers in axillary clusters. 



1. W. Americana, L. Stem erect, villous ; leaves ovate or oblong, 

 acute or obtuse, serrate, plicate, tomeutose on both surfaces ; heads of flowers 

 globose, stalked, or subsessile and shorter than the petioles, the upper ones 

 ol'ten spiked ; calyx hirsute ; flowers yellow. South Florida. Stem 2 - 3 

 high, rigid. Leaves 1'- 2' long. 



3. MELOCHIA, L. 



Involucel 3-leaved or none. Calyx 5-tieft. Petals 5, convolute. Stamens 

 5, the filaments more or less united near the base. Cells of the ovary 1-2- 

 ovuled ; styles 5, separate, or partly united ; stigmas club-shaped. Capsule 

 5-celled, few-seeded. Herbs or shrubs, with stellate pubescence, and clus- 

 tered white or purple flowers. 



RIEDLEIA. Capsule septicidal or locuUcidal. Involucel 3-leared. 



Flowers purple. 



1. M. serrata, Beuth. Shrubby, pilose ; stem slender, branching (2 -4 

 high) ; leaves ovate, acute, unequally serrate ; stipules linear, longer than the 

 petioles ; flower clusters axillary, globose, the upper ones spiked ; corolla 

 showy, purple (!' wide). Pine woods, South Florida. Oct. 



2. M. hirsuta, Cav. Herbaceous, pubescent and slightly hispid; leaves 

 ovate, snbcordate, crenate-serrate ; stipules subulate, shorter than the petioles ; 

 fliiwer clusters terminal ; corolla pale purple, yellowish within. Streets of 

 Savannah (Feuy). East Florida (Curtiss). Stem l-2 high. Corolla 

 \' wide. 



ORDER 19. TILIACEJE. (LINDEN FAMILY.) 



Trees, rarely herbs. Leaves alternate, with deciduous stipules. 

 Flowers axillary or extra-axillary, hypogynous, polyandrous. Sepals 

 4-5, valvate in the bud, deciduous. Petals 4-5, convolute or im- 

 bricated in the bud. Stamens distinct or united in clusters : anthers 

 2-celled, the pollen grains smooth. Style single. Stigma 4- 10-lobed. 

 Capsule 2 -5-celled, 1- many-seeded. Seeds anatropous. Embryo in 

 the axis of fleshy albumen. Cotyledons flat, leafy. 



1. TILIA, Tourn. LINDEN, BASSWOOD. 



Sepals 5. Petals 5, imbricated in the bud. Stamens numerous, united in 5 

 clusters, with a petal-like appendage (sterile stamen) opposite each petal. 

 < )vary 5-celled, with 2 ovules in each coll. Stigma 5-lobed. Capsule 1-celled, 

 1-2-seeded. Trees, with cordate leaves, and several-flowered axillary pe 

 duncles, which are connate below with a large ligulate veiny bract. Flowers 

 cream-color. 



1 T. Americana, L. Leaves smooth and green on both surfaces, ob- 

 liquely cordate or truncate at the base, sharply serrate. Mountains of 

 Georgia and North Carolina June. A large tree. Leaves 4' -5' wide. 



