THE YUCCEAE. 51 



Panicle mostly glabrous. var. grandiflora. 

 Leaves without marginal threads. 



Panicle pubescent. f. exigua. 



Panicle glabrous; petals blunter. f. Integra. 



Y. FLACCIDA Haworth. 

 Synonymy as above. 



Leaves rather green, scarcely 25 mm. wide, very flexible. Panicle 

 moderately pubescent to glabrous. Petals usually broad and rather 

 short. Plate 16. 



The commoner wild form. 



Y. Meldensis of gardens appears to differ only in having 

 more spreading panicle branches, in which it agrees with 

 some garden forms of Y. filamentosa. 



Y. flaccida orchioides (Carriere) Trelease. 



T. orchioides Carriere, Eev. Hort. 1861 : 370. /. 89, 90. Lemaire, 

 111. Hort. 13 : 99. Baker, Gard. Chron. 1870 : 1122. Engelmann, 

 Trans. Acad. St. Louis. 3 : 43. 



A depauperate garden form with stiffer more erect nearly threadless 

 leaves, and racemose inflorescence. 



Y. flaccida glaucescens (Haworth) Trelease. 



Y. glaucescens Haworth, Suppl. PL Succ. 34. (1819). Sweet, Brit. 



Fl. Gard. pi. 53. Bommer, Journ. d'Hort. Prat. 1859:41. 



Lemaire, 111. Hort. 13:98. Baker, Gard. Chron. 1870:923. 



Hemsley, Garden. 8 : 132. 

 Y. filamentosa glaucescens Baker, Journ. Linn. Soc. Bot. 18 : 228. 



(1880). 



Y. filamentosa Antwerpensis Baker. Z. c. 



Y. orchioides major Baker, Bot. Mag. iii. 33. pi. 6316. (1877). 

 Y. flaccida Carriere, Rev. Hort. 1859 : 555. /. 11 9, 120. 

 Y. filamentosa Baker, Ref . Bot. 6. pi. 324. Rept. Mo. Bot. Gard. 



3. pi. 10. Amer. Florist. 8:55. /. 



A more glaucous form, with the leaves mostly broader and erect until 

 a later period, almost tomentose panicle, and more attenuate petals. 

 Plates 12, f. 2. 13-15. 17, f. 1. 76, f. 2. 79, f. 2. 



The common form of American gardens. 



