MONOGRAPH OF THE GENUS ALLIUM. 
Obs. I am not certain whether this is the plant which 
PuRSH mentions in his " Flora Septentrionalis Americanae," 
under the name of Allium angulosum, but it is not unlike- 
ly. The flowers of his plant are white ; but he copies the 
description of Willdenow, which does not agree with my 
plant. 
MACROSPATHA. 
Divisio TV. — Umbella bulbifera. Stamina subulata 
ad basin membrana connexa. Spatha bicornis, elon- 
gata, foliacea. Caulis foliosus, ante anthesin tortus. 
Flores penduh, campanulati. Cajpsul^E erectae. 
Sect. 1. — Floribus albidis, stamina eequantihus. 
44. All. oocypetalumy foliis linearibus, fistulosis subtus 
«ulcatis, margine aspero, umbella efFusa ; radiis pendulis, 
perianthii laciniis lanceolatis acuminatis. 
Hah. in Europa australi. Floret Augusto. 
Bulbus solitarius, ovatus, albus. Caulis sesqui- vel bipedalis, non 
exacte teres vel paulo compressiusculus, fusco sufFusus, glaucescens. 
Folia anguste linearia, fistulosa, supra canaliciilata subtus sulcata ; mar- 
gine aspero, tempore florendi marcescentia. Vaginas teretes, striatse. 
Spatha 2-valvis, basi ovata, apice elongata, foKacea. Umbella bulbifera, 
effusa, radiis pendulis. Pedicelli teretes, filiformes, 1- ad 2-uncias longi, 
basi albi, apicem versus virides, incrassati, sub florescentia curvati, 
demum erecti. Perianthium dilutissime purpurascens, fere album, cam- 
paniforme: lacinice oblongo-lanceolatse, acutse v. acuminatae, acumine 
interdum bifido : lineolis dorsalibus viridibus. Stamina perianthio bre- 
viora, ssepe sequalia. Filamenta subulata, alba, basi membrana con- 
nexa. Antheroe oblongse, lutese; polline ochroleuco. Pistilla stamina 
sequalia. Ovarium luteum, trigonum. Stylus teres, albus. Stigma ob- 
tusiusculum. Capsula trigona, trilocularis : loculis 1- vel 2-spermis. 
intus hirtis. 
