478 



GENTIAN ACE^i). ijurcusltmma. 



behind each anther a lleshy and Ihittish appendage. Anthers, fruit, »fec., nearly as 

 Asdejnas. — Twining licrbs ur partly shrubby plants) (of the warm regions) ; with 

 opposite leaves and umbellate llowers. 



1. S. heterophyllum, Engclm. Tuberulent or almost glabrous : twining stems 

 liliform : leaves linear or narrowly linear-lanceolate, acute, some of them cordate oi' 

 hastate at base, a lew tapering into the petiole : umbels several-llowered, long- 

 peduncled : corolla dull purple or whitish, almost 5-parted ; the lobes ovate, with 

 scariouswhite more or less ciliate margins, cinereous-pubescent outside, nearly 

 smooth within, thrice the length of the linear-lanceolate hairy calyx-lobes : api)en- 

 da<'es of the stamnns ro\indish, rather longer than the anthers : follicles lanceolate 

 and slender-pointed, pubcrulent. — Torr. in I'acif. li. Ke]). y. 3G3, & IJot. Mt^x. 

 Jiound. Mil. 



Var. hirtellum. lOrect, but inclined to twine, two feet high, slender, minutely 

 but densely pubescent all over with short siyeading hairs : leaves all linear and 

 tapering at base : llowers one half smaller, " whitish-yellow, fragrant." 



Climbing over bushes in the southern ])art of the State, Parry, Cooper, Cleveland. Extends 

 into Mexico and Texas. Corolla about halt' an inch in diameter, except iu the variety. The lat- 

 ter near Fort ilohave, Dr. Cooper. 



OuDER LXII. GENTIANACE^. 



Glabrous herbs, with colorless and bitter juice, ejitiro opposite and sessile leaves 

 (except in Menyanthes and sometimes in Sivertia), no stipules, perfect and regular 

 llowers, stamens as many as the lobes of the corolla and alternate with them, 

 inserted on the tube, the anthers free from the stigma ; ovary one-celled with two 

 parietal placental, becoming a septicidal capsule ; style one or none ; the stigmas 

 commonly two ; seeds luimerous and sometimes innumerable, rarely few ; and the 

 end)ryo small or minute in copious albumen. Calyx ])ersistent. Corolla nu)stly 

 convolute in the bud, rarely valvate with the edges turned inward, usually Avither- 

 ing-persistent. Seeds anatro[)ous or amphitropous. — An order of about 40 genera. 



SuitoKOicu I. GENTIANE/K 



Lobes of the (withering-persistent) corolla convolute in the bud. Seeds some- 

 times covering the whoK) walls t)f the capsule, the coat usually thin. Leaves opi)o- 

 site or whorled (or alternate in Swertla), entire ; the cauline sessile. 



Tl\e following genera, not yet known to occur within or very near the borders of California, may 

 be expected in the northernmost jjarts of the State : 



Pi.KuaoovNE (uoTATA, Orisel)ach), like an annual Gentian, but with rotate corolla. 



Halenia (deflicxa, (hisebach), known by the spurs, one under each lobe of the corolla. 



SwKUTiA (I'KUHNNis, Liun.), most like one of the smaller species of Frasera; the leaves alter- 

 nate ! or only the upper ones opposite. 



Kustoma, a genus with showy sky-blue flowers, and a tllil'orni style, belongs lo the region east 

 of llio southern l>orders of the State. — See Ajipciidix. 



1. Erythraea. Corolla salverform, red. Anthers s])irally twisted after shedding the pollen. 



Style .sliinder, at length deciduous. Calyx 5-partcd. 



2. Microcala. Corolla shoit-salveiform, yellow. Anthers short, not twisting. Style iu ours 



])eisi.stent : calyx merely 4-to()thed. 



3. Gentiaua. Corolla from campanulate or funnelform to salverform. Style none or hardly 



any : stigmas 2, thin and Hat, persistent. Seeds very numerous and small. 



4. Frasera. Corolla rotate, 4-partcd, each lobe bearing one or two fringed glands in the form 



of bhallow iiits. Style di.^tinct, persistent : stigma small, entire or 2-lobed. Seeds few 

 or several, large. 



