68 Muhlenbergia, Volume 8 



racemis verticillatis, bracteis pedicellis subaequalibus, calyce 

 ebracteato: labiis integerrimis superiore basi gibboso, vexillo 

 sessili alis sessilibus parallelo et aequali. 



"L. rivularis. Douglas in litt. 



"Perennis. Caules erecti, bi-tripedales, pallida virides, 

 levissime pubescentes. Poliola saepius 7, anguste obovato-ob- 

 longa, obtusiuscula, subcarnosa, apice recurva, subtus levissime 

 pubescentia, petioli longitudine. Stipulae parvae, snbfalcatae, 

 erectae. Racemi verticillati, multiflori, fere glabri. Verticilli 

 subsexflori. Bracteae lineares, aciitae, pedicellis paulo longi- 

 ores, citissime deciduae. Calyx ebracteolatus, bilabiatus, labio 

 superiore ovato, basi gibboso, inferiore longiore, cymbiformi, 

 indiviso,/obtuso, subcarinato. Vexillum sessile, snbrotunduin, 

 eraarginatum, fere album, roseo paulnlum tinctum, basi coeruleo 

 puro maculatum, alarum longitudine; alae sessiles, oblongae, 

 obtusae, ventricosae, caeruleo-violaceae: carina alba, apice pur- 

 purea, rostrata, margine ciliata. Stamina omnino monadelpha. 



"A native of California, whence seeds have been recently 

 sent to the Horticultural Society. It forms a handsome hardy 

 perennial, flowering in great profusion from May to September. 

 In some respects this is even a better species for Gardens than 

 L. polyphyllus: for, if less stately, it is more gay in its appear- 

 ance, and a longer flowerer. The diversity of colours in the 

 petals no doubt contributes very much to this eifect, which is 

 increased by its loose, but not straggling mode of growth. 



"That this is very distinct from all the Lupines yet in our 

 Gardens, no one who is acquainted with these plants would for 

 a moment doubt. Yet it is most difficult to point out any posi- 

 tive characters by which it may be defined. It varies apparently 

 in the degree of hairiness of its leaves and branches; and seems 

 better distinguished by its pubescence being of the silky kind, 

 by its short bracteae, and by its ebracteolate calyx, than by any- 

 thing else that can be mentioned. J. L." 



The above is a copy of the original description of L. rivu- 

 laris. The next description was by Agardh in Synopsis Gen- 

 eris Lupini 24. 1835. He included it under his tribe Arborei, 

 placing it before L. arboreus, and notes that he has seen a wild 



