56 



BORAGINACEAE. 



[Vol,. III. 



5. Lappula Americana (A. Gray) Rydberg. Nodding Stickseed. (Fig. 3025.) 



Echinospcrmum deflexum var. Americanum A. 

 Gray, Proc. Am. Acad. 17: 224. 1882. 



Lappula Americana Rydberg, Bull. Torr. Club, 24: 

 294. 1897. 



Annual, rough-puberulent; stem slender, erect, 

 paniculately branched, i-3 high, the branches 

 spreading or ascending. Leaves oblong or ob- 

 long-lanceolate, mostly narrowed at both ends, 

 2'-\' long, 2^ // -6 // wide, the lower petioled, 

 the upper sessile; racemes slender, many-flow- 

 ered; pedicels slender, 2 // -4 // long, deflexed in 

 fruit; corolla white or bluisb, about \" broad; 

 fruit pyramidal, about 2" broad; nutlets keeled, 

 papillose-tuberculate on the back, rarely with a 

 few prickles on the keel, the margins armed 

 with a single row of flat prickles. 



In thickets, Manitoba and North Dakota to British 

 Columbia. Also in Europe and Asia. May-Aug. 



4. ALLOCaRYA Greene, Pittonia, 1: 12. 1887. 



Mostly annual low herbs, with linear entire leaves, the lowest often opposite, and small 



flowers in terminal spikes or racemes. Pedicels thickened at the summit, persistent. Calyx 



5-divided, persistent, the segments narrow. Corolla salverform, white, yellow in the throat. 



Stamens included. Ovary 4-divided; style short. Nutlets crustaceous, smooth, or rough, 



attached at their base or below the middle to the receptacle, the scar of attachment concave 



or raised. [Greek, different nuts.] 



About 25 specie?, natives of western North 

 America. 



i. Allocarya scopulorum Greene. 

 Mountain Allocarya. (Fig. 3026.) 



Eritrichium Calif ornicum var. subglochidialum 



A. Gray, Bot. Cal. 1: 526. In part. 1876. 

 Allocarya scopulorum Greene, Pittonia, 1: 16. 1887. 



Somewhat succulent pubescent, with scat- 

 tered stiff appressed hairs, branched, the slen- 

 der spreading branches i / -8 / long. Leaves 6 // - 

 i8 // long, i // -l)4 // wide, sessile or very short- 

 petioled, flowers about \" broad, distant, borne 

 in most of the axils, very short-pedicelled; 

 floral bracts similar to the leaves, but shorter; 

 calyx segments linear-lanceolate; nutlets reticu- 

 late on the back, lightly grooved on the ventral 

 side. 



Western Nebraska to Montana, Wyoming and 

 Colorado. June-Sept. 



5. CRYPTANTHE Lehm. Sem. Hort. Hamburg. 1832. 

 [Krynitzkia F. & M. Ind. Sem. Hort. Petrop. 7: 52. 1841.] 



Low annual setose or hispid branched herbs, with narrow alternate entire leaves, and 

 small mostly white flowers, in scorpioid bractless or bracteolate spikes. Calyx 5-parted or 

 5-cleft, at length deciduous from the spike, the lobes or segments erect, mostly connivent in 

 fruit. Corolla small, funnelform, usually with 5 scales closing the throat, the lobes imbri- 

 cated in the bud. Stamens included; filaments short. Ovary 4-divided; style short; stigma 

 capitellate. Nutlets erect, rounded on the back, not keeled,, the margins obtuse, acute or 

 wing-margined, attached laterally to the conic or elongated receptacle, the scar of attach- 

 ment mostly longer than broad. [Greek, hidden-flowered.] 



About 50 species, natives of North and South America, mostly of the western United States. 

 Nutlets, at least some of them, with short processes. 1. C. crassisepala* 



All four nutlets smooth and shining. 2. C. Fendleri. 



