320 OECHIDACEAE 



10. Ibidium cfernuum (L.) House. Stem 2-8 dm. tall: blades of the lower 

 cauline leaves linear or narrowly oblong to oblong-lanceolate, or sometimes linear- 

 oblanceolate, 8-30 cm. long: perianth white or yellowish: lateral sepals lanceolate* 

 9-10 mm. long, acute: petals oblong-lanceolate, about as long as the sepals: lip ovate 

 or oblong-ovate, mostly 8-11 mm. long, the callosities incurved. It seems best to 

 include GyrostacTiys odorata (Nutt.) Kuntze, G. ochroleuca Eydb., and G. constricta 

 Small in this species. 



On river banks and and in wet soil, Newfoundland to Manitoba. Florida and Texas. 

 Summer and fall. 



11. Ibidium trf lobum Small. Stem 3-5 dm. tall, leafy well up above the base : 

 blades of the lower cauline leaves oblong to elliptic-oblong, 3-8 cm. long: lateral sepals 

 broadly linear, 6-7 mm. long, abruptly constricted at the apex: petals oblong or nearly 

 so, slightly longer than the sepals : lip white, oblong, 6-7 mm. long, sometimes slightly 

 3-lobed at the apex, the callosities nearly straight. 



In sandy soil, southern peninsular Florida. Winter and spring . 



12. Ibidium plantagineum (Eaf.) House. Stem 1-4 dm. tall, leafy near the 

 base: blades of the lower cauline-leaves broadly linear to oblong, 5-15 cm. long: 

 perianth mainly white: lateral sepals narrowly lanceolate, 5-6 mm. long: petals 

 linear, shorter than the sepals: lip yellow, quadrate-oblong, 5-5.5 mm. long, the 

 slender callosities rather spreading. 



In woods and on banks, Nova Scotia to Minnesota, North Carolina and Wisconsin. 

 Spring and summer. 



20. BEADLEA Small. 



Caulescent herbs. Leaves various, the basal and lower cauline with wide blades, 

 the upper cauline mere sheathing scales. Flowers in a terminal spike. Perianth 

 whitish. Median sepal and petals coherent: lateral sepals erect. Lip with a large 

 body completely involute about the long column and a short nearly erect tip, the 

 basal callosities commonly minute or obscure. Stigma -beak not forked. 



1. Beadlea cranichoides (Griseb.) Small. Stem 1-2.5 dm. tall: blades of the 

 basal leaves ovate, oblique, 2-3 cm. long: lateral sepals lanceolate or oblong- 

 lanceolate, mostly 4-5 mm. long, obtuse or acuminate: petals linear or nearly so: 

 lip 4-5.5 mm. long, the body cuneate, the tip rhombic, about as broad as long or 

 broader, the callosities minute or obscure. [Beadlea Storeri (Chapm.) Small.] 



In hammocks, peninsular Florida. Winter and spring. 



21. STENORHYNCHUS L. C. Kich. 



Caulescent highly colored succulent herbs. Leaves various, the basal with more 

 or less elongated blades, early decaying, upper cauline leaves sheathing scales. Flowers 

 in a conspicuous spike. Perianth reddish, yellowish or white. Lateral sepals nar- 

 row, decurrent together with the base of the lip as a spur adnate to the hypanthium. 

 Petals shorter than the lateral petals. Lip entire, scarcely as long as the lateral 

 sepals, the blade lanceolate, the claw ciliate and with thickened margins, destitute of 

 callosities. Stigma-beak subulate, 



1. Stenorhynchus orchioides L. C. Eich. Stem 3-7 dm. tall, stout : spike con- 

 spicuous: lateral sepals linear-lanceolate, 20-27 mm. long: petals lanceolate, 15-20 

 mm. long, slightly curved: lip slightly shorter than the lateral sepals, with a lan- 

 ceolate body and a stout claw with lateral ridges and cilia. [S. Jaliscana (S. Wats.) 

 Nash.] 



In hammocks, peninsular Florida. Also in tropical America. Spring. 



22. OPHRYS L. 



Scapose herbs. Leaves reduced to scales at the base of the stem. Flowers in a 

 raceme subtended by 2 opposite leaf-like bracts. Perianth greenish or brownish 

 purple. Sepals and petals distinct, nearly equal, spreading or reflexed. Lip more or 



