United States species of Pancratium. 145 



3. Pancratium coronarium. 



Bulbus non stolonifer, scapum unum edens : folia octo, line- 

 ari-Iorata, obtusa, bipedalia, medio latiora, striata dorso con- 

 vexa, ecarinata, versus basin canaliculata, ita ut semicylindrum 

 concavum referre, apice plana ; scajnis bipedalis, 4-florus, stri- 

 atus, anceps, non glaucus : germen parvuni, ovato-trigonum : 

 tubus subtrigonus, angulis rotundatis, virescens : petala alba 

 (non ochroleucoidea) lineari, recta, striata, concava, corona 

 longiora, canaliculata, exteriora, subtus viridescentia ; corona 

 ampla, infundibuliformis, (non rotata) alba, stellata, dentibus 

 staminiferis latis, integris, utrinque dente acuminato instructis 

 sinubus profundis, irregulariter eroso-dentatis ; fundus viridi 

 stellatus demum ochroleucus : filamenta corona triplo breviora 

 e dentibus coronae, incurva, alba : antherce verticales, flavas : 

 pistillum versus apicern viride declinatum, incurvum filamentis 

 vix longius : capsula dirumpens et marcescens ante seminum 

 maturationem, semina post destructionem capsulas crescentia. 



Inhabits in Savannah river, at the rapids, a few miles above 

 Augusta, where in covers the rocky islets. I have also seen it 

 in the Congaree river, at Columbia, in South Carohna, occupy- 

 ing similar situations. It is undoubtedly the species observed 

 by Bartram, and mentioned in his Travels as the Pancratium 

 fluitans ; but as, although it almost always grows under the water, 

 it never can be said to float, I have thought proper to change 

 the name given to it by him, particularly as it has never been 

 before described or admitted into any system. 



However this species may resemble the preceding, the cir- 

 cumstance of its producing young bulbs joined to the old root, 

 and not at the end of long runners, sufficiently distinguishes it. 

 In P. mexicanum and P. rotatum, the stolones frequently run 

 to the distance of two feet ; but in the present species the bul- 

 billi are always attached to the parent, as in different Narcissi. 



