On rocks: Pensylvania to Virginia and on the Missouri.
2. July. v. v. A handsome very small fern, covered
with long brownish hair.

2. C. frondibus triplicato-pinnatis, pinnulis ovalibus distinc-
tis apice crenatis aut emarginatis subtus dealbatis.
On rocks, on the banks of the Missouri. 2. July. v.s.
A very delicate small fern, very much resembling
C. tenuifolia.

735. DICKSONIA. L'Herit. sert. angl. 30.

dealbata.

1. D. frondibus bipinnatis, pinnulis oblongo-lanceolatis pin- pilosiuscula.
natifidis, laciniis margine superiore inciso-dentatis, ra-
chibus pilosiusculis. Willd. sp. pl. 5. p. 484.

D. pubescens. Schkuhr filic. p. 125. t. 131.
Polypodium pilosiusculum. Muhlb. in litt.

In shady woods, among rocks: Pensylvania and Virginia.
4. v. v. A foot or more high, resembling Aspidium
dilatatum.

736. HYMENOPHYLLUM. Smith act. taur. 5. p. 418. 1. H. frondibus pinnatis, pinnis infimis majoribus, superioribus sensim minoribus pinnatifidis, laciniis linearibus obtusis bifidis ciliatis, venis hirtis, rachi stipiteque alatis ciliatis. Willd. sp. pl. 5. p. 519.

Trichomanes ciliatum. Swartz. prodr. 136.

In shady forests, on the trunks of old trees: Pensylva. nia and Virginia. 4. v. v.

ciliatum.

V. HYDROPTERIDES.

737. ISOETES. Gen. pl. 1620.

1. I. frondibus subulatis semiteretibus. Willd. sp. pl. 5. p. 534.

Icon. Schkuhr filic. t. 173. Fl. dan. 191. Dill. musc. t. 80. f. l.

On rocks, on the bottom of rivers: New York, in the Oswego river, near the Falls. 2. v. v. This singular plant, resembling a zoophyte, is about two inches high.

lacustris.

natans,

caroliniana.

CRYPTOGAMIA HYDROPTERIDES.

738. SALVINIA. Gen. pl. 1617.

1. S. foliis ellipticis obtusis supra fasciculato-setosis, petiolis pilosis, fructibus subsessilibus aggregatis. Willd. sp. pl. 5. p. 536.

Marsilea natans. Sp. pl. 1562.

Icon. Schkuhr filic. t. 173.

Lam. illust. 863.

Floating, like Lemna, on the surface of stagnant waters : in several of the small lakes in the western parts of New York and Canada. O. v. v.

739. AZOLLA. Lam. encycl. 1. p. 340.

1. A. foliis imbricatis ovato-oblongis obtusis patentibus sub-
tus rubris.-Willd. sp. pl. 5. p. 541.

Floating on the waters of Lake Ontario. . v.v.
Resembles a floating moss or Jungermannia.

FINIS.

TABLE

OF

ANOMALOUS FLOWERS.

MONANDRIA.

Kyllingia. 47.

Canna. 585.

MONOGYNIA.

Cyperus. 50. Scirpus. 54. Thalia. 584.
ORCHIDEÆ omnes 585–594.

MONANDRIA. DIGYNIA.

Agrostis. 64. Saccharum. 73. Uniola. 84. Alchemilla. 112.

DIANDRIA. MONOGYNIA.

Salicornia. 2. Boerhavia. 31. Kyllingia. 46. Anychia. 176. Lepidium. 435. Cypripedium. 594. Vallisneria, 602.

Galium. 102. Anychia. 176. Prinos. 220. Brodiæa. 223. Juncus. 237. Melothria. 444. Sicyos. 444. Momordica. 444.

TRIANDRIA. DIGYNIA.

Salix. 608. Coinptonia. 635.

TRIANDRIA.

Amaranthus. 206.

TRIGYNIA.

Triglochin. 247. Phyllanthus. 443.

Polygonum. 269. Tragia. 604. Juniperus. 646.

TABLE OF ANOMALOUS FLOWERS.

TETRANDRIA. MONOGYNIA.

Gratiola. 12. Elytraria. 13. Monarda. 16. Collinsonia. 20. Anychia. 176. Prinos. 220. Smilacina. 233. Clarckia. 260. Pothos. 398. Class. XIII. DIDYNAMIA. 401 -431. Diotis. 602. Alnus. 622.

TETRANDRIA. DIGYNIA.

Gentiana. 185. Myrica. 620. Juglans. 636. Morus. 639 Cupressus. 645. Thuya. 646.

TETRANDRIA. TETRAGYNIA.

Proserpinaca. 92. Myriophyllum. 274.

PENTANDRIA. MONOGYNIA.

Catalpa. 10. Cornus. 107. Echites. 178. Gonolobium. 178. Apocynum. 179. Asclepias. 180. Ceropegia. 184. Amsonia. 184. Gelseminum. 184. Gentiana. 185. Prinos. 220. Polygonum. 269. Cassia. 307. Passiflora. 444. Illecebrum. 445. Galax. 446. Lobelia. 446. Petalostemum. 461. Class. XVII. SYNGENESIA. 491-582.

PENTANDRIA. DIGYNIA.

Polygonum. 270. Scleranthus. 315. Iresine. 445. Salix. 608. Quercus. 625.

PENTANDRIA. TRIGYNIA.

Polygonum. 270. Arenaria. 319. Hypericum. 378. Passiflora. 444,

PENTANDRIA. PENTAGYNIA.

Spergula. 320. Cerastium. 320.

334.

HEXANDRIA. MONOGYNIA.

Commelina. 31. Trientalis. 252. Laurus. 274. Lythrum. Class. XIV. TETRADYNAMIA. 432-441. Corydalis, 462. Fumaria. 463. Aristolochia, 596.

HEXANDRIA. DIGYNIA.

Polygonum. 271.

Esculus. 253. Gaultheria. 282. Vaccinium. 284. Monotropa. 303. Halesia. 449. Polygala. 464. Populus. 618.

OCTANDRIA. DIGYNIA.

Polygonum. 271. Corylus 634.

OCTANDRIA. TETRAGYNIA.

Myriophyllum. 274.

OCTANDRIA. PENTAGYNIA.

Sedum. 323.

ENNEANDRIA. MONOGYNIA.

Acer. 267.

ENNEANDRIA. TRIGYNIA.

Lechea. 90. Elodea. 379.

Sabbatia. 137. Azalea. 151. Asclepias. 180. Menziesia. 264. Jeffersonia. 268. Lythrum. 334. Portulacca, 365. Galax. 446. Geranium 448. Halesia. 449. Styrax. 450. Class. XVI. DIADELPHIA. 466-490. Betula. 620. Carpinus. 623. Ostrya. 623.

DECANDRIA. DIGYNIA. Chrysosplenium. 269. Fagus. 624. Quercus. 625.

DECANDRIA. TRIGYNIA.

Jatropha. 603. Croton. 603. Acalypha. 604. Casta

nea. 624.