STANDLEY TREES AND SHRUBS OF MEXICO. 1173 



DOUBTFUL SPECIES. 



FuNASTRUM LURiDUM (Decaisne) Schlechter, Repert. Sp. Nov. Fedde 13: 

 286. 1914. Sarcostemma luridum Kunze, Linnaea 20: 26. 1847; PMlibertia 

 lurida Hemsl. Biol. Centr. Ainer. Bot. 2: 319. ISSl. Described from cultivated 

 plants of Mexican origin. 



Philibektia tomentella T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 90. 1910. 

 Type from tlie Cape Region of Baja California. 



6. FISCHERIA DC. Cat. Hort. Monsp. 112. 1813. 



Stems scandent, usually fruticose below ; leaves cordate ; cymes umbelliform 

 or short-racemiform, pedunculate; calyx 5-parted, glandular within, the seg- 

 ments usually narrow ; corolla subrotate, the lobes contorted in bud ; outer 

 corona annular, fleshy, adnate to the corolla, the interior corona of 5 flesliy 

 obtuse scales ; stigma depressed. 

 Calyx lobes obovate, obtuse ; cymes short-pedunculate. 



1. F, aristoloch.iaefolia. 

 Calyx lobes linear ; cymes on long peduncles 2. F. oaxacana. 



1. Fischeria aristolocMaefoiia T. S. Brandeg. Univ. Calif. Publ. Bot. 6: 



190. 1915. 



Type from Cerro del Boqueron, Chiapas. 



Stems long-hirsute ; leaves ovate-cordate or oblong-cordate, 6 to 16 cm. long, 

 acuminate, hirsute beneath ; peduncles 1.5 cm. long or less, about 6-flowered ; 

 calyx nearly glabrous ; corolla about 7 mm. long. 



2. Fischeria oaxacana Standi., sp. no v. 



Type from Santo Domingo, Oaxaca, altitude 480 meters {Nelson 2713; U. S. 

 Nat. Herb. no. 908027). 



Stems stout, densely hirtellous and very sparsely hirsute; leaves petiolate, 

 elliptic-ovate, 7.5 to 15 cm. long, 4 to 9 cm. wide, acute to rounded at apex 

 and short-cuspidate, cordate at base with a short closed sinus, minutely 

 setulose above, densely setulose-pilosulous beneath ; peduncles 4.5 to 10 cm. 

 long, many-flowered, the flowers short-racemose, the pedicels 1.5 to 2.5 cm. 

 long, viscid-hirtellous and sparsely hirsute ; calyx lobes about 1 cm. long, 

 linear or narrowly oblong-lanceolate, cuspidate-attenuate; corolla about 1 cm. 

 long, hirtellous outside, the lobes ovate-oblong, subacute, hirtellous within; 

 outer corona fleshy, rugose, the scales of the inner corona large and very 

 thick, abruptly contracted at about the middle, the upper portion broadly 

 rounded. 



7. METASTELMA R. Br. Mem. Wern. Soc. 1: 52. 1809. 



Slender vines, herbaceous or suffrutescent ; leaves small ; «ymes umbelliform, 

 sessile or short-pedunculate, the flowers very small, whitish ; calyx 5-lobate. 

 usually minutely glandular within ; corolla campanulate or subrotate, deeply 

 5-lobate. the lobes valvate, usually papillose or villous within; corona scales 

 membranaceous, ovate to linear; stigma plane or apiculate; follicles terete, 

 smooth. 

 Corolla lobes merely puberulent within. 



Leaves subcordate at base 1. M. subcordatum. 



Leaves obtuse or acute at base. 



Calyx lobes subulate 2. M. schafEneri. 



Calyx lobes ovate, obtuse. 



Corolla lobes linear, glabrous within or nearly so 3. M. cuneatum. 



Corolla lobes oblong, densely puberulent within. 



Umbels long-pedunculate 4. M. macropodum. 



Umbels sessile or nearly so 5. M. palmeri. 



79688—24 22 



