MONOGRAPH OF THE GENUS PYROLA. 
PYROLA, Tournef. Linn. Juss. 
Chjmaphila, Pursh; Chimaza, Brown. 
Linn. Syst Decanduia Monogynia. 
Nat. Ord. Erice^. § 1. Ericece verce. 
Char. Essent. Calyoc 5-partitus. Petala 5. Anther 
basi foraminibus 2 hiantes. Sti£>ma 5-lobum. Capsula 5- 
locularis. PlacenttE lunatae. Semina anguste scobiformia^ 
utrinque alata. EmbrT^o transversus. 
Character prolatus Generis. 
Calyx parvus, 5-partitus, persistens. Petala 5, hypogyna, 
imbricatim conniventia, caduca. Stamina 10: Jilamenta 
subulata, hypogyna, raro (in Chimaphila) stipitata: an- 
ther(£ SJcculares, foraminibus 2, s^pius tubulatis, ad basin 
hiantes, postmodo inversae. Pistillum 1 : ovarium globo- 
sum : stylus simplex, saspius elongatus, nunc raro vix uUus : 
stigma 5-lobum. Capsula globosa, 5-locularis, 5-valvis, 
medio loculorum singulorum 5-fariam dehiscens: valvis 
margine tomento tenuissimo s^pius intricate connexis. Pla- 
centae 5, lunatae, spongiosae, simplices v. bipartitas, axi cen- 
trali 5-angulo insertse. Dissepimenta axis centralis angulis 
adnata. Semina numerosissima, minuta, anguste scobifor- 
mia, basi apiceque alata, funiculo umbilicali per medium 
placentis adnata: testa simplex, reticulata, membranacea, 
laxa, fuscescens : albuvieii carnosum, subrotundum, album. 
Embryo transversus, minutus, niveus, in aibuminis extre- 
mitate umbilicali : cotylcdones breves, crassse, obtusae : ra- 
dicula brevissima, crassa, obtusa, umbilicum spectante. 
Hab. vegetn — Herbae vel suffrutices, sempervirentes, 
humiles^ radicibus late repentibus. fYoYia' petiolata, alterna^ 
