PLANTS OF RHODE ISLAND. 43 
eT 
SAGITTARIA, L. Arrow-HEAp. 
1. variabilis, Engelm, var. obtusa. 
var. latifolia. 
var. hastata. 
var. diversifolia. 
var. angustifolia. 
var. gracilis. 
2. calycina, Engelm. Woonasquatucket, &c. 
3. graminea, Michx. Benedict’s Pond, &c. 
4. heterophylla, Pursh. Olney. 
OrDER 90. HYDROCHARIDACEA. 
ANACHARIS, Richard. WatTreR-WEED. 
Canadensis, Planchon. 
VALLISNERIA, Micheli. Tape Grass, WATER CELERY. 
spiralis, L. Barrington, &c. 
ORDER 91. ORCHIDACEZ. 
ORCHIS, L. Orcuts. 
spectabilis, L. Scituate, Flint. 
HABENARIA, R. Br. ORcHISs. 
1. tridentata, Hook. 
2. virescens, Spreng. 
3. viridis, R. Br., var. bracteata, Reich. Lime Rock. 
4, Hookeri, Torr. Hunt, Flint. 
5. ciliaris, R. Br. YELLOW FRINGED ORCHIS. 
6. blephariglottis, Hook. Wuirr FRINGED ORCHISs. 
var. holopetala. Hedge; Quidnessett, 
Bennett. 
7. lacera, R. Br. RaGGED FRINGED ORCHIS. 
8. psycodes, Gray. SMALL PURPLE ORCHIS. 
9. fimbriata, R. Br. LARGE PuRPLE OrcuHis. So. Kingstown. 
GOODYERA, R.Br. RATTLESNAKE PLANTAIN. 
repens, R. Br. Smithfield; rare. 
2. pubescens, R. Br. 
SPIRANTHES, Richard. Lanpres’ TREssEs. 
cernua, Richard. 
graminea, Lindl., var. Walteri. 
gracilis, Bigelow. 
simplex, Gray. E. Greenwich, Congdon. 
LISTERA, R.Br. TwaAyBLADE. 
cordata, R. Br. So. Kingstown. 
att alt ll 
