STANDLEY TREES AND SHRUBS OF MEXICO 1399 



Anthers equaling the corolla lobes 1. S. microphyllus. 



Anthers shorter than the corolla lobes 2. S. rotundif olius. 



1. Symphoricarpos microphyllus H. B. K. Nov. Gen. & Sp. 3: 424. 1818. 

 Symphoricarpos glaucescens H. B. K. Nov. Gen. & Sp. 3: 424. pi. 295. 1818. 

 Symphoricarpos montanus H. B. K. Nov. Gen. & Sp. 3: 425. pi. 296. 1818. 

 Margaris barbigera DC. Prodr. 4: 483. 1830. 



f.Margaris nudiflora DC. Prodr. 4: 483. 1830. 



Chiococca axillaris Sesse & Moc. PI. Nov. Hisp. 36. 1887. 



Coahuila to Colima, Oaxaca, and Veracruz; type from Mordn, Hidalgo. 



Shrub, 1 to 2.5 meters high; leaves ovate to rounded, 5 to 20 mm. long, obtuse 

 or acute, pubescent or glabrate, often glaucous beneath; corolla about 1 cm. 

 long, pinkish; fruit white. "Perlilla," "perlitas" (Mexico). 



2. Symphoricarpos rotundif olius A. Gray, PL Wright. 2: 66. 1853. 

 Mountains of northeastern Sonora. New Mexico to Idaho, Washington, and 



California; type from Santa Rita, New Mexico. 



Slender shrub, about 1 meter high; leaves broadly ovate to orbicular, 1 to 2.5 

 cm. long, obtuse or rounded at apex, pubescent beneath; corolla pinkish, 6 to 8 

 mm. long; fruit white. 



5. LONICEBA L. Sp. PL 173. 1753. 

 Reference: Rehder, Synopsis of the genus Lonicera, Rep. Mo. Bot. Gard. 14: 

 27-232. pi. 1-20. 1903. 



Erect or scandent shrubs; leaves entire; flowers spicate, capitate, or geminate, 

 often irregular; calyx 5-dentate; corolla tubular, funnelform, or campanulate, 

 the limb 5-lobate or bilabiate; fruit a fleshy berry, few-seeded. 



Some of the Old World species of honeysuckle (Spanish, "madreselva") are 

 cultivated in Mexican gardens. The flowers of the Old World L. caprifolium L. 

 are sometimes used in Europe for making perfumery, and a syrup of the fruit has 

 been employed for treating asthma. The fruits of all species are said to be emetic 

 and cathartic, and that of L. xylosteum L. is reported to have caused serious 

 poisoning. 

 Flowers borne on axillary, mostly 2-fiowered peduncles. 



Bracts at base of the flowers large, reddish, accrescent in age; leaves acuminate. 



1. L. involucrata. 

 Bracts small, subulate; leaves mostly obtuse or rounded at apex. 



2. L. mexicana. 

 Flowers in terminal spikes or heads. 



Upper leaves not united around the stem; corolla about 12 mm. long. 



3. L. subspicata. 

 Uppermost leaves united by their bases around the stem; corolla 1.7 to 5.5 

 cm. long. 



Corolla funnelform, about 2 cm. long 4. L. albiflora. 



Corolla tubular, 4 to 5.5 cm. long 5. L. pilosa. 



1. Lonicera involucrata (Richards.) Banks; Spreng. Syst. Veg. 1: 759. 1825. 

 Xylosteum involucratum Richards. Bot. App. Frankl. Journ. 733. 1823. 

 Lonicera mociniana DC. Prodr. 4: 336. 1830. 

 Distegia involucrata Raf. New Fl. N. Amer. 3: 21. 1836. 

 Mountains of Chihuahua. Western United States, Canada, and Alaska. 

 Erect shrub, 1 to 3 meters high; leaves short-petiolate, ovate or oval, 5 to 15 

 cm. long, sparsely pilose and green beneath; corolla j-^ellow; fruit black, about 

 8 mm. long. 



