1330 APPENDIX 



to oblong-lanceolate, 6-9 mm. long, obtuse. Differs from A. microscordion in the 

 larger perianth, the more abruptly dilated filaments and the longer anthers. 

 On prairies, central Texas. Spring. 



Page 268, in the eleventh and twelfth lines of the key under CONVALLARIACEAE in- 

 terchange the words "slender" and "dilated." 



Page 272, after Convallaria, insert: 



11. SANSEVIERIA Thunb. 



Succulent herbs, with rootstocks. Leaves erect, flat, channelled or nearly terete. 

 Flowers borne in narrow panicles, erect or ascending. Perianth white or greenish: 

 lobes narrow, about as long as the cylindric tube. Filaments adnate to the perianth- 

 tube. Capsule membranous. Seeds baccate. Differs from Convallaria in the thyrsoid- 

 paniculate inflorescence, the elongated perianth, and the long stamens with narrow 

 anthers. 



1. Sansevieria Guineensis Willd. Leaves 4-10 dm. tall, mottled: panicle many- 

 flowered: perianth-lobes linear-spatulate, 14-18 mm. long, recurved. 



In dry soil, Key West, Florida. Naturalized from Africa. BOW-STKING HEMP. 



Page 275, after Nolina Georgiana, insert: 



la. Nolina atopocarpa Bartlett. Flowering stem 1.5 m. tall or less: leaves 

 numerous; blades narrowly linear, 1 m. long or less, scabrous-margined, those of the 

 flowering stem much reduced: panicle narrow: perianth about 5 mm. broad: sepals 

 and petals ovate to oblong-ovate: capsules obovoid, 5-6 mm. long, unequally 3-lobed. 

 Differs from Nolina, Georgiana in the broader sepals and petals and the decidedly 

 asymmetric obtusely 3-lobed capsule which closely invests the seed. 



In pine lands, peninsular Florida. Summer. 



After Nolina Lindheimeriana , add: 



4. Nolina Texaua (Torr.) S. Wats. Flowering stems mostly 1 m. tall or less, 

 usually several from a short caudex: leaves radiating and forming a mat at the base 

 of the plant, 3-9 dm. long; blades slender, roughish-margined : panicle compound, 

 the larger bracts leaf -like, with much-dilated bases: perianth 6-8 mm. broad: sepals 

 and petals oblong to oval-oblong: capsules 6-7 mm. broad, much broader than long. 

 Differs from N. Lindheimeriana in 1 the larger perianth and the shorter capsule. 



In dry or stony soil, Texas and New Mexico and adjacent Mexico. Spring. 



Page 286, after Aletris farinosa, insert: 



3a. Aletris bracteata Northrop. Stems 3-8 dm. tall, slender : leaf -blades nearly 

 linear to linear-lanceolate, 6-11 cm. long: perianth white, 6-8 mm. long; lobes lanceo- 

 late to triangular, spreading: style stout: capsule-body conic, stout-beaked. Differs 

 from A. farinosa in the slightly granulose perianth and the conic capsule-body. 



In damp soil, southern peninsular Florida. Also in the Bahamas. 



Page 289, in first line of under Atamosco longifolia read "Cockerell" in place 

 of "Small." 



Page 292, in place of the description of Dioscorea villosa, insert: 



Slam in ate panicles solitary in the leaf-axils. 

 Lower leaves whorled in 4's-7's. 



Leaf-blades green beneath : staminate sepals 1.5 mm. long or less. 1. D. quaternala. 



Leaf-blades glaucous beneath : staminate sepals over 1.5 mm. long. 2. D. glauca. 



Lower leaves typically alternate. 



Pistillate racemes many-flowered, many-fruited at maturity : stem inter- 

 nodes glabrous. 3. D. villosa. 

 Pistillate racemes few-flowered, 1-4-fruited at maturity : stem internodes 



pubescent. 4. D. hirticaulis. 



Staminate panicles clustered in the leaf-axils or sometimes individually solitary, 



and terminating the stem. 5. D. Floridana. 



1. Dioscorea quaternata (Walt.) Gmel. Kootstocks slender, mostly 1 cm. thick 

 or less, sometimes forked, often with few short lateral branches: lower petioles 

 densely pubescent at the base and the apex: leaf -blades ovate to ovate-lanceolate, 

 mostly 8-11 cm. long, repand, green and glabrous: staminate sepals oblong or oval: 

 pistillate racemes few-flowered: fruits obovate, 1.5-3 cm. long. 



In woods and on banks, North Carolina to Missouri, Florida and Louisiana. 



