2574 



PHALARIS 



PHASEOLUS 



Var. picta, Linn. (var. variegata, Hort.). RIBBON- 

 GRASS. GARDENER'S GARTERS. Fig. 2890. Lvs. longi- 

 tudinally striped with white. Commonly cult, for orna- 

 ment and sometimes run wild about old places. 



The name "P. commutata, or TOOWOOMBA CANARY-GRASS," has 

 appeared in recent agricultural literature, as an intro. from Austral. 

 The grass has been identified as P. bulbosa, Linn. (See Kew Bull. 

 Misc. Inf. 1909:289). A g H ITCHCOCK. 



PHALOCALLIS (Greek words referring to the deli- 

 cacy of the cone formed by the crests). Iridacex. 

 Referred by Baker and others to Cypella. The plant 

 offered as P. plumbea, Herb., by Dutch bulb-growers 

 is Cypella. plumbea, Lindl., a South Brazilian species 

 described in Volume II, page 940. B.M. 3710 (flowers 

 chiefly lilac). F.S. 4:395 (chiefly light blue); 14:1466 

 (flore striato, veined and flushed with rich purple shades 

 on a white ground). 



PHARBITIS: Ipomcea. 



PHASEOLUS (ancient Latin name, somewhat 

 altered, of a bean) . Leguminosse. BEAN. The common 

 garden and field beans, and also some species grown 

 for ornament. 



Annual or perennial mostly twining herbs, or some 

 of them woody at the base: Ivs. mostly pinnately 

 3-foliolate, stipellate: peduncles axillary, bearing clus- 

 ters of white, yellow, red, or purplish papilionaceous 

 fls. and more or less compressed (flat-sided) several- to 

 many-seeded 2-valved pods. From its allied genera, 

 Phaseolus is separated by minute characters of calyx, 

 style ; and keel. In Phaseolus, the style is bearded along 

 the inner side and the stigma is oblique or lateral, 

 rather than capitate on the end of the style; the keel is 

 coiled into a spiral body, including the 10 diadelphous 

 (9 and 1) stamens. Many species have been described, 

 mostly of warm countries (P. polystachyus is native in 

 U. S., but not cult.), but probably not more than 150 

 that can be clearly separated as species. 



The cultivated species of Phaseolus are all tropical 

 or subtropical in nativity. Therefore they must not be 

 subjected to frosts. Most of them are garden annuals 

 which are planted after the danger of freezing weather 

 has passed and the ground is well warmed. For the 

 culture of the domesticated forms of Phaseolus, see 



probably show that a number of other distinct species 

 not here enumerated have been domesticated locally. 

 The eleven species here treated fall into two groups, 

 the one perennial, the other annual, at least in the 

 United States. 



2891. Phaseolus acutifolius var. latifolius. 



the article on Bean. See, also Canavalia, Glycine, 

 Mucuna, Soybean, Stizolobium, Vicia, and Vigna. 



Eleven species of Phaseolus are now known to be 

 cultivated to a greater or less extent in various parts 

 of the world. Further explorations in Mexico, Central 

 and South America and in eastern Asia will very 



2892. Phaseolus multiflorus. ( X H) 



INDEX. 



compressus, 10. 

 ellipticus, 10. 

 faecundus, 11. 

 gonospermus, 10. 

 inarruenus, 11. 

 latifolius, 8. 

 latisiliquus, 11. 

 limensis, 11. 

 lunatus, 11. 

 macrocarpus, 11. 



multiflorus, 9. 

 Mungo, 7. 

 oblongus, 10. 

 puberulus, 11. 

 retusus, 3. 

 saccharatus, 11. 

 sphxricus, 10. 

 truxittensis, 2. 

 vulgaris, 10. 

 Xuarezii, 11. 



aconitifplius, 4. 

 acutifolius, 8. 

 adenanthus, 2. 

 amanus, 2. 

 angiilaris, 5. 

 aureus, 7. 

 Bertonii, 1. 

 calcaratus, 6. 

 Caracalla, 1. 

 carinatus, 10. 

 cirrhosus, 2. 



I. PERENNIAL BEANS. 



This group includes three species, none of which is 

 now commonly seen in cultivation. 



A. Plant tall-twining, with large, fragrant, showy fls.: 



root not tuberous. 



B. Fls. light purple to yellowish, in axillary racemes. 



1. Caracalla, Linn. CARACOL. SNAIL-FLOWER. 

 CORKSCREW-FLOWER. Lfts. broadly rhombic-ovate, 

 pointed or acuminate: fls. large and fleshy, very fra- 

 grant, the large keel coiled like a snail-shell. Tropics, 

 probably of the Old World. B.R. 341. V. 2, p. 370 

 Naturalized in parts of Calif., where it grows 20 or 

 more ft. high, sometimes becoming a nuisance. It is 

 an old-fashioned glasshouse plant in cold climates, but 

 is now rarely seen. P. Bertonii, Hort., recently intro. 

 from Paraguay, although a close relative, is probably 

 specifically distinct from P. Caracalla. 



BB. Fls. red or light blue, in axillary dense capitate 

 clusters. 



2. adenanthus, Mey. (P. am&nus, Soland. P. 

 truxillensis, HBK. P. cirrhosus, HBK.). Foliage much 



