430 Robert Pilger. — Plantaginaceae. 



ovata vel anguste ovata, crassiuscula, 3 — 4 mm longa, facie hili concava et satis crasse 

 marginata. 



Algier: Oran [sec. Decne. : In aridis montium circa Tlemsen (Munby)]. In montosis 

 glareosis ad Tlemcen (Herb. Cosson — April 1856); Tlemcen (BattandieretTrabut, 

 PI. d'Alg. n. 570 — fruchtend im April 1889). Marokko : Mittlerer Atlas, Kalkfelsen, 

 1500 m ü.M. (Jahandiez, PI. Maroc. n. 433. — fruchtend im Mai 1924). 



var. maroccana Batt. in Bull. Soc. Bot. Fr. LIV. (1907) 549. — P. mauritanica 

 sec. Ball, Spicil. Fl. Marocc. (1878) 637. — Spicae pedunculus aeque ac bracteae pars 

 inferior et sepala praeter pilos cellula acutata terminatos pilis glanduliferis, minute capitatis 

 ± copiose instructus. Minor, squarrose ramosa. Folia parce pilosa, ad ramorum partem 

 superiorem lanceolata, 1 — 1,5 cm longa vel et linearia vel anguste linearia ad 2 — 3 cm longa. 



Marokko: E regione inferiore Atlantis majoris in convalle Amsmiz, alt. 1100 ad 

 1700 m (J. Ball; Hooker — Mai 1871); Ouensa-Tal, s.w. Marokko (Ibrahim, 

 Herb. Cosson — fruchtend im April 1873); Djebel Tagounit (Ibrahim — 1884). 



256. P. arborescens Poir. Encycl. Meth. V. (1804) 389; Pers. Syn. II. (1805) 140; 

 Roem. et Schult. Syst. Veg. III. (1818) 143; Webb et Berth. Phytogr. Canar. III. (1836 

 ad 1840) 187, T. 197; Decne. in DC. Prodr. XIII. 1. (1852) 733; Bornmüller in Englers 

 Bot. Jahrb. XXXIII. (1903) 475; Burchard, Beitr. Oekol. Biol. Kanarenpflanzen (1929) 

 193. — Psyllium arborescens (Poir.) Mirb. Hist. PI. ed. 2. XIV. (1830) 333. — Psyllium 

 arborescens Poir. var. genuina Pitard in Pitard et Proust, Les lies Canaries III. (1908) 324; 

 Fedde, Repert. IX. (1911) 381; et var. Palmensis Pitard 1. c. 323. — Suffrutescens, ad 

 circ. 0,5 m alta, laxe ramis lignosis, satis tenuibus, arcuatim adscendentibus irregulariter 

 divisa, foliis emortuis flexuosis ad ramos diu conservatis, demum ramis nudis, satis laevibus, 

 reliquiis vaginarum transversim annulatis; vel suffrutex humilior, circ. 10 — 15 cm tantum 

 altus, subcaespitose-expansus, densius ramosus, ramis brevibus, ramulis multis; ramuli 

 novelli in specim. altioribus ad 6 — 7 cm longi, in humilioribus 3 — 4 cm longi, densefoliati, 

 internodiis inferne 2 — 4( — 5) mm longis (et in ramis inveteratis haud longioribus), foliis 

 ad apicem ramulorum fasciculatim congestis. Folia decussata vel terna vel quaterna 

 verticillata, erecta vel erecto-patentia, sicca rigidius membranacea vel crassiuscula, sicca 

 satis fragilia, angustissime linearia, 2 — 3 vel ad 5 — 6 cm longa, 0,75 — 1,25( — 1,5) mm 

 lata, superne et inferne parum angustata, ± plana, margine setulis brevissimis instructa, 

 ceterum pilis longioribus vel longis, albidis, rigidulis irregulariter parce inspersa (rarius 

 pilis illis nullis), basi in vaginam perparvam membranaceam dilatata, vaginis circa ramulum 

 annu\atim conjunctis, nervis parum conspicuis vel 3 prominentibus et folio sicco inter 

 nervös ± sulcato. Inflorescentiae versus apicem ramulorum paucae vel satis numerosae; 

 spicae pedunculus rectus, perbrevis vel brevis, ad 5( — 6) cm longus, parcius vel densius 

 perbreviter vel breviter hirtus; spica ambitu ovata, pauciflora, laxiuscula. Bractea ad 

 flores inferiores calycem circ. aequans vel et superans, 5,5 — 7 mm longa, e basi ovata, circ. 

 3 mm longa, in acumen longius, durum, carina tantum formatum producta, pilis brevibus, 

 longioribus et longis intermixtis laxe ciliata, carina in bractea ipsa minus indurata, nervis 

 3 conspicuis, mediano angusto prominulo. Sepala 4 — 5 mm longa, antica parum concava, 

 oblique anguste elliptica, apice longius ciliata, carina lata, superne crassa, inferne minus 

 indurata (mediano conspicuo), supra apicem sepali in acumen breve producta, laminis 

 lateralibus firme membranaceis ; sepala postica concava, parum compressa, lanceolato- 

 ovata vel anguste ovata, breviter e carina acuminata, apice longius ciliata, carina angusta. 

 Corollae tubus ad 5 mm longus, angustus, demum rugulosus, lobi lanceolati, acutati, 

 2,5 mm longi, superne parum lacerulati, nervo perangusto parum conspicuo. Staminum 

 anthera longe exserta, 2,5 mm longa, basi breviter incisa, apiculo angusto, lanceolato, 

 circ. % — fere % antherae longo. Stilus longe exsertus. Capsula circ. ellipsoidea, apice 

 rotundato-truncata, parte superiore 2,5 — fere 3 mm longa, parte inferiore 1 mm longa; 

 semina 1 — 2 evoluta, satis tenuia, nitentia, obscure rufo-brunnea, ambitu angustius elliptico- 

 ovata, facie hili parum concava, margine parum incrassato. 



