COLLINSIA. XCI SCROPHULARIACE^E. 399 



bifid, reflexed, lower trifid, closed by the prominent palate ; caps. 

 valveless, dehiscent by 3 pores. European herbs with the lower Ivs. 

 opposite, Ike upper alternate. Inflorescence as in Linaria. 



1. A. MAJUS. Great Snap- Dragon. Lvs. lanceolate, opposite ; fls. racemed; 

 sep. glandular-hairy, lanceolate, acute.- An elegant and popular garden flower, 

 native of England. Grows 1 or 2f high. Flowers large, pink-colored, the lower 

 lip white and the mouth yellow, with a gibbous prominence at base beneath. 

 There are varieties with scarlet, scarlet and white, and double flowers, -f 



2. A. ORONTIUM. /?. grandiflorum. Chav. Glabrous or hairy above, spread- 

 ing; Ivs. oblong-lanceolate; fls. remote, subsessile, upper ones subracemo.se; 

 cat. segments equaling the corolla, and ovoid and very oblique capsule. Native 

 of Europe, Asia, and North America 1 Bentham. A showy garden plant, 1 

 2f high. Corolla 6" long, rose-color or white, with purple spots and veins, -f 



TRIBE 4. 



Corolla tubular, not saccate or spurred. Capsule 2 4-valved. ^Calyx seg- 

 ments or lobes imbricate in aest. Inflorescence compound (general centripe- 

 tal, partial centrifugal). Bcnth. 



5. PAULOWNIA. Siebold. 



Calyx deeply 5-cleft, fleshy ; cor. tube long, declinate, enlarged 

 above, limb oblique, with rounded segments ; sta. 4, arched downwards, 

 with no rudiment of a 5th ; caps, ligneous, acuminate, valves septi- 

 ferous in the middle ; seeds 00, winged. Tree, native of Japan. 



R. IMPERIALIS. Sieb. (Bignonia tomentosa. Tkunb.) A splendid tree with 

 the habit of Catalpa, recently introduced in cultivation in this country ! 

 Branches crooked, nearly horizontal. Leaves 7 12' by 4 9', opposite, petio- 

 late, broad cordate-ovate, entire or somewhat trilobate, villous-canescent both 

 .sides, smoothish above when full grown. Panicles large, terminal, many- 

 flowered. Corolla 1 2' long, between violet and rose-color, striped and spot- 

 ted within, f 



6. SCROPHULARIA. 



So named from the resemblance of the roots to scrofulous tumors. 



Calyx in 5 acute segments ; corolla subglobose, limb contracted, 

 sub-bilabiate, lip with an internal, intermediate scale (sterile filament) j 

 capsule 2-celled ; valves with 2 inflated margins. Herbs or suffruti- 

 cose, ofkn fatid. Lvs. opposite. Cymes in simple or compound terminal, 

 thyrsoid panicles. 



S. NODOSA (and S. Marilandica. Linn. S. lanceolata. Pursh.') Figwort. 



Glabrous; st. angled; Ivs. ovate, ovate-oblong, or the upper lanceolate, 

 acute, serrate or subincised, base broadly cordate or rounded or acutish; thyrse 

 oblong, leafless or scarcely leafy at base ; cymes pedunculate, loosely many- 

 flowered; col. segments broadly ovate, obtuse, slightly margined; sterile anlfi. 

 broadly orbicular. Bentham. 7J. In woods and hedges, Can. U. S. and Cal. ; 

 also in Europe. Rare in N. Eng. Stem square, 4 61' high, with paniculate, 

 opposite branches above. Leaves 3 7' long, smooth, thin, often long-acumi- 

 nate. Flowers ovoid, 34" long. Limb very small, sublabiate, having a 

 green scale (sterile filament) adnate to the upper side. July Oct. The plant 

 is quite variable in the Ibrm of the upper leaves and in the development of the 

 panicle; but having observed it in numerous localities in the Middle and 

 Western States, I cheerfully concur in the present view of Mr. Bentham. 



7. COLLINSIA. Nutt. 



Named by Mr. Nultall in honor of Z. Collins, Es<j., of Philadelphia. 



Calyx 5-cleft ; corolla bilabiate, orifice closed, upper lip bifid, lower 

 trifid, with the middle segment carinately saccate and closed over the 

 34* 



