Zygotic chromosome number: 2n = 20 (Diers 1961: 451); this 
chromosome count is based on Diers 1/08; we have seen a dupli- 
cate of this collection at Stockholm. 
ADDITIONAL MATERIAL. 
Peru. Dept. Ancash: Prov. Recuay, Marca (Chuccho), elev. 1700 m, Gomez 
473, 14 Apr. 1965. “En arenal” (USM). —Dept. La Libertad: Prov. Trujillo, 
Cerro Chiputur al N de Trujillo, 1000 m.s.m., 4. Lopez M. 0739, 9 Sept 1951. 
“Loma arcillosa, fl. amarillentas” (USM; US).— Dept. Lima: Zapan, 1800 
m.s.m., Vilcapoma 97, 20 Aug 1972. “Hab. pedregoso, borde de carretera, flores 
amarillas” (USM).—Cerca de ruinas de Cajamarquilla, 400 m.s.m., Ferrevra 
8363, 24 Jun 1952. “En cauce seco; flores amarillas” (USM).—Prov. Canta: 
cerca de Canta, 2200-2500 m.s.m., Ferrevra 7255, 8 May 1950. “Hab. pedregoso, 
falda de cerro” (US). Canta Valley. road to Huaral, 20 Km NE of Trapiche, 
1000 m.s.m., Hutchison 1032, 5 Aug 1957 (M; US; G: S: USM; NY; GH; K; 
U).— Entre Puente Trapiche y Cerro Huachoc, 800-900 m.s.m., Ferrevra 14826, 
5 Dec 1962. “*Hierba en cauce seco; fl. amarillentas’ (USM). Prov. Huarochiri: 
hillsides above Santa Eulalia, 1200 m alt., Goodspeed 33098, 10 Apr 1942. “Bush 
| m high (G; GH; US).--Santa Eulalia, Weberbauer, [year] 1924. “Planta 
sufrutescente, fl. amarillo-parduzco” (USM). Bei S. Bartolome, 6Ostl. von 
Lima, ca. 1800 malt., Diers 1/08, 26 May 1959. “Bliite weiss-gelb; krduterarme 
Bezirk der Wiistenpflanzen” (S).—San Bartolome, (Lima-Oroya Railroad), 
1500-1600 m alt... Weberbauer 5290, Apr 1910 (GH). Prov. Chancay: entre 
Trapiche y Huaral, camino antiguo por el cerro Huachoc, 800-900 m.s.m., 
Ferrevra 11767, 20 Mar 1956(USM).— Prov. Cajatambo: Ambar, 2000 m alt., 
Stork 11455, 16 Apr 1939. “Herb to 0.3 m; fl. pale yellow; a root perennial, in 
sandy gravelly hillsides very dry except in rainy season” (GH). — Dept. ?: Cum- 
ing 1010 (K).— Cuesta of Purruchuca, Cuming 1071 (K).— Peru, Mathews 1011 
(BM). Dept. Cajamarca: Prov. Contumaza : Portachuelo (Ascope San 
Benito), 850 m.s.m., Sagastegui et al. 7528, 6 May 1971 (MQ). 
Distribution. Endemic to sandy and stony slopes, usually 
between 1000 and 2200 m high, in the Peruvian departments of 
Lima, Ancash, La Libertad and Cajamarca. 
2. Leptoglossis Ferreyraei A.T. Hunz. et Subils sp. nov. 
(Pl. 3,3 PL 4.) 
Herbae vestitae ca. 10-20 cm altae. Internodia vegetativa | ,2- 
5.5 cm longa. Pili diversi: plerumque ramificati raro glandulosi 
(capita unicellularia vel pluricellularia; pedes semper unicellu- 
lares). Folia petiolata; laminae ellipticae 1,5-3,5 cm longae, 0,3-1 
cm latae. Inflorescentiae cymosae, densae, internodiis brevissi- 
mis. Flores sessiles vel subsessiles. Calyx 3,5-4 mm longus, lobulis 
5 aequalibus. Corota 9-15 mm longa. Stamina 2; staminodia 3. 
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