82 HEATH ORDER 



MONOTROPACEAE INDIAN PIPE FAMILY 



Sepals 2-6, united at the base, deciduous, petals 3-6, united or separate, 

 stamens 6-12, ovary 1-6-celled, 4-6-lobed, stigma globose or shield-shaped, 

 capsule 4-6-lobed, or terete, 1-6-celled, 4-6-valved; flowers terminal, soli- 

 tary or clustered; leaves reduced to scales or lacking; humus-plants or 

 saprophytes. 



1. Flower solitary, nodding MONOTROPA 



2. Flowers clustered 



a. Cluster 1-4 in. long; petals separate, falling 



away HYPOPITYS 



b. Cluster 6-20 in. long ; petals united, persistent PTEROSPORA 



MONOTROPA Linne 1753 INDIAN PIPE 



(Gr. monos, one, tropa, turn, from the nodding stem) 



PL 14, fig. 7. 



Sepals 2-4, deciduous, petals 5-6, white, separate, stamens 10-12, ovary 

 5-celled, style 1, short, thick, stigma funnelform, capsule 5-celled, 5-valved, 

 erect ; flowers solitary, nodding ; bracts yellowish or red ; succulent herb. 

 Stems w r hite to reddish, 2-15 in. high; flowers .5-1 



in. long M. umflora 



HYPOPITYS Adanson 1763 PINESAP 



(Gr. hypo, beneath, pitys, fir, from its habitat) 



PL 14, fig. 9. 



Sepals 3-5, petals 3-5, white, yellowish or red, stamens 6-10, ovary 3-5- 

 celled, style slender, stigma funnelform, capsule 3-5-celled, 3-5-valved, erect ; 

 flowers in a terminal, nodding one-sided raceme which soon becomes erect. 

 Stems usually clustered, 4-12 in. high; flowers 8-15 



mm. long H. nmltifldra 



PTEROSPORA Nuttall 1818 PINE DROPS 



(Gr. pteron, wing, spora, seed) 



PI. 14, fig. 8. 



Sepals 5, united, petals 5, united, reddish, stamens 10, included, ovary 

 sub-globose, 5-lobed, 5-celled, style short columnar, stigma globose, 5-lobed, 

 capsule globose, 5-lobed, 5-celled, 5-valved; flowers nodding in racemes. 

 Stems red-brown, 1-5 ft. high; flowers 5-10 mm. 



wide P. andromedea 



