26 



THE PINES OF MEXICO. 



15. PLNTJS OOCARPA SCHIEDE. 



PnrUB oocarpa Schiede, Linnaea xii, 491 (1838). Antoine, Die Conif. 38, t. 17, fig. 2 



(1840). Loudon, Encycl. Trees & Shrubs, 1012, fig. 1896 (1842). Endlicher, Syn. Conif. 



152 (1847). Parlatore, DC. Prodr. xvi, pt. 2, 401 (1868). Hemsley, Bot. Biol. Cent. 



Am. iii, 188 (1883). 



Pixus oocarpoides Lindley, ex Loudon Encycl. Trees & Shrubs, 1 1 18 (1842). 



Leaves with persistent sheaths, in fascicles of 3, 4 and 5, 18-28 cm. long, serrate ; resin 

 ducts usually combining with the hypoderm bundles and forming partitions across the green 

 tissue. Conelets subterminal, long-pedunculate, reflexed or patulous, single or in pairs, their 

 scales armed with a very small prickle. Cones pendent or patulous on long, often curved pe- 

 duncles, symmetrical or somewhat oblique, 4-8, sometimes 10 cm. long, persistent, their 

 apophyses thin and flat or pyramidal, usually delicately but distinctly carinate transversely 

 and radially, lustrous, ochre-yellow often tinged with gray or green. Seed-wing much 

 thickened at the base. Branchlets usually stout, the decurrent bases of the bracts deciduous, 

 their bark for a few years thin, scaly and red. 



A tree 12-15 metres in height, with stout branches, a round compact head and bright green 

 leaves in spreading tufts ; growing in Central America and extending through southern and 

 western Mexico to the boundary between the states of Sinaloa and Sonora ; confined to the 

 subtropical zone and associated with P. Pringlei and P. Lawsoni. 



Nelson, 941 (398551) Comaltepec, Oaxaca; 978-9 (398552-3) Yalalag, Oaxaca; 1761 (398564) Reyes, Oaxaca; 

 2152, 2158 (398566-7) Patatlan to Cbilapa, Guerrero ; 2406 (398574) Jaquila to Nepala, Oaxaca; 2558 

 (398585-6) San Carlos to San Bartolo, Oaxaca; 2678 (398587-8) Santo Domingo, Oaxaca; 2854 (229353) Efi- 

 genia, Oaxaca; 3130 (398590) San Cristobal, Chiapas; 3493 (398595) Comitan, Chiapas. 3673 (398598), 3681 

 (398600) Huehuetenango, Guatemala; 4044 (398608) Talpa to Mascota, Jalisco; 4119 (398612) La Laguna, Ja- 

 lisco ; 6845 (398632) Los Reyes, Michoacan ; 7039 (399380) Ocotito, Guerrero. Goldman, 19 (324782) Huau- 

 chinango, Puebla ; 268(396791) Sierra de Choix, Sinaloa ; 341 (396793) Chacala, Durango ; 798 (398790) 

 Canjob, Chiapas; 846 (398792) Comitan, Chiapas; 996 (398798-9) Ixtapa, Chiapas; 1055 (347474) Los Pinos, 

 Chiapas. Rose, 2003 (300896) Pedro Paulo to San Blasato, Tepic ; 2195 (301105-6), Santa Teresa, Tepic ; 

 3026 (301983), 3068 (302029) Bolaftos to Guadalajara, Jalisco; 2262 (302733), 2264 (301178) Durango; 3736 

 (302724) Sierra Madre, Zacatecas; 3737 (302725-6) Sierra Madre, Tepic. Rose S- Painter, 7508 (451115) Gua- 

 dalajara, Jalisco. Maxon df Hay, 3370 (473357) Purula, Guatemala; 3428 (473408) Chiquin, Guatemala ; 3375 

 (473361) Santa Rosa, Guatemala. Pringle, 2109, 2455, Guadalajara, Jalisco; 10141, Uruapan, Michoacan; 

 Shaw, Etzatlan, Jalisco; Cuernavaca, Morelos. 



PLATE XIX. 



Fig. 1. Cone from Uruapan. 



" 2. Habit of P. oocarpa. 



" 3. Conelets from Uruapan. 



" 4. Leaves " ' 



Fig. 5. Cone of Nelon 979. 



" 6. Seeds of P. oocarpa. 



" 7. Section through wing and nut, magnified. 



' 8. Typical leaf-section, magn. 30 diam. 



