compositae of southern california

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: Plants acaulescent, with simple scapes, the heads therefore solitary and leaves radical. Achenes beakless, broad and truncate at summit Malocothrix Californica, p. 264. Achenes beaked. Achenes muricate-roughened above 115. TARAXACUM, p. 272. Achenes smooth or 10-ribbed; the ribs either straight or wavy, but not muricate 119. TBOXIMON, p. 275. Achenes flattened: leafy-stemmed plants. Achenes beaked 117. LACTTJCA, p. 274. Achenes truncate, not beaked 116. SONCHTJS, p. 272. Tribe 1. EUPATORIEAE. Eupatory Tribe. 1. HOFMEISTEBIA Walp. Suffrutescent desert plants. Lower leaves opposite, the upper alternate. Heads medium-sized, long-pedunculate or nearly sessile, many-flowered. Involucre campanulate; bracts narrow, striate, the outer ones successively shorter. Receptacle naked. Achenes 5-angled by the strong nerves, callous-thickened at base. Pappus of 2 to 12 (in ours 10 to 12) scabrous bristles and in addition a series of shorter thin paleae. 1. H. pluriseta Gray, Pacif. R. Kept. iv. pt. 5, 96, t. 9 (1857). Stems decidedly woody, intricately much branched, forming bush-like plants usually 3 to 6 dm. high: herbage glandular- puberulent: leaves 1 to usually 3 cm. long; petiole flat or canaliculate at least toward the base, 1 to 4 cm. long; blade less than 7 mm. long, deltoid to lanceolate or linear, acute at apex, tapering at base, entire or with 1 or 2 small teeth, the whole blade often so small as to appear merely as the dilated and flattened tip of the petiole: bracts of the inflorescence linear-subulate: involucre 7 to 9 mm. high, about 20-flowered; bracts conspicuously 3-striate, with acuminate often recurved tip: pappus of 10 to 12 bristles equalling or somewhat exceeding the corolla and about as many narrow acute squamellae, the latter sometime... --This text refers to an alternate Paperback edition.
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