XCU ADDENDA TO THE 



longer than the calyx ; otherwise much like A. Robbinsii. (A. secundus, Michx. 

 A. Labradoricus, DC. Phaca astragalina, DC.) — Willoughby Mountain, Ver- 

 mont, Rev. J. Blake; a form with rather elongated racemes of smallish 

 flowers. Coast of Maine, Dr. Scammon, &c. On the Aroostook and St. John's 

 Rivers, Maine, G. L Goodale, and northward. June, July. — In the former 

 edition specimens of this were confused with A. Robbinsii, which has smaller 

 white flowers, a broad and flatter pod, with very slight dorsal introflexion, and 

 is nearer the European Phaca australis, L. (Eu.) 



Oxytropis Lamberti, Pursh. (Genus next to Astragalus, known by 

 the mucronate tip or beak to the keel of the corolla, to which the generic name 

 refers. The seed-bearing suture of the pod is introflexed.) Elowers blue, purple, 

 or sometimes white ; pod 2-celled or nearly so by the introflexion of the seed- 

 bearing suture, the dorsal suture not at all projecting inwards (as it does in O. 

 campestris, DC). The common forms of this species, which abound on our 

 northwestern plains, may reach our borders. A form with thinner pods, fewer 

 flowers, and loose dark hairs on the calyx, long ago found near Quebec, has re- 

 cently been detected on the St. John's River in Maine, by G. L. Goodale. It is 

 one of the forms which connect 0. Lamberti with 0. Uralensis. 



P. 108. 



2 a . Cassia obtUSifolia, L. Leaflets 3 or rarely 2 pairs, obovate, 

 obtuse, with an elongated gland between those of the lower pairs or lowest pair ; 

 pods slender, 6' long, curved ; root aunual. — Banks of the Ohio River, Illinois 

 (Dr. Vasey), and southward. 



P. 116. 



l a . Geum urbamim, L. Petals yellow; otherwise nearly as in G. 

 album. — E. Fairfield, Ohio, S. B. McMillan. — I have seen only incomplete 

 specimens ; the petals very small. 



P. 120. 



3. FRAGARIA 1 NDICA, L., Of DtJCHESNEA FRAGARIOIDES, Smith, — which 



differs from the true Strawberries in having leafy runners, a calyx with incised 

 leafy bractlets larger than the sepals, yellow petals, and an insipid fruit, — has 

 established itself in copses around Philadelphia (Charles E. Smith), and in the 

 Southern States. (Adv. from Ind., &c.) 



P. 128. 



3. Ammamiia Niittallii. Submersed aquatic, or sometimes terres- 

 trial, rooting in the mud ; leaves linear, when immersed elongated, thin, and 

 closely sessile by a broad base, when out of water shorter and contracted at the 

 base ; flowers mostly solitary in the axils, sessile, small ; calyx with broad tri- 

 angular lobes, the appendages at the sinuses obsolete or wanting ; petals none ; 

 style very short ; ovary 2-celled. (Peplis diandra, Nutt., but stamens usually 4. 

 Hypobrichia Nuttallii, M. A. Curtis.) —Wisconsin and Minnesota (T. J. Hale)* 

 Illinois (Buckley, Vasey, Ball, &c), and southward. June- Aug. — When in 

 water, stems l°-3° long, very leafy. 



