250 Mr. D. Don’s Descriptions of new Genera and Species 
` Cacalia spathulata. Herb. S. et M. 
In Mexico. Sesse et Mocinno. X . 
Herba cespitosa. Folia plurima, radicalia, petiolata, lanceolato- i 
spathulata aut elliptico-oblonga, membranacea, denticu- 
lata, suprà demüm calva, viridia, subtùs niveo-lanata, mol- 
lissima, 2—3-pollicaria, basi attenuata ; juniora margine 
revoluta.  Petioli lineares, plani, membranaceo-alati, pol- 
licares v. bipollicares. . Scapi cubitales, subsolitarii, filifor- 
mes, uniflori, squamis destituti, undique lanuginosi. Flos 
nutans. Involucrum polyphyllum : squamis triplici circiter 
serie imbricatis, lanceolatis, acuminatis, coriaceis, lanugi- 
nosis. Receptaculum nudum. — Flosculi disci copiosissimi, 
masculi, tubulosi, 5-fidi, longitudine unguiculares, nervis 
ad sinum divisis, fauce parüm dilatatà: /aciniis lingulatis, 
apice nervis marginalibus validis confluentibus incrassatis, E 
obtusis, nervis secundariis recurrentibus ad basin lacinia- P 
rum usque manifestis ! peripherici foeminei, pauci, simplici : d 
ordine digesti, uniformes, tenuissimè filiformes, bilabiati, 
non radiati, fauce coarctati: labiis minutis; interiore bifido, 
laciniis linearibus, revolutis; erteriore ligulam abbrevia- - 
tam, linearem, obtusè tridentatam constituente. Anthere 
basi bisetæ (setis TUUM cuspidatis) appendiculà line- 
neà , wheal BU afta mas- 
a 
2 
d 
T 
E 
4 
3 
pipilos s  fcemineis longè exserti 
semicylindricis, obtusis, levibus, recurvis. Achenia fusi- 
formia, compressa, pilosiuscula, apice tantüm angustata : 
disco epigyno dilatato. Pappus capillaris, fulvellus, nec 
_ stipitatus: radiis inzqualibus, minuté denticulatis, duplici 
ordine ieapiosissimis,. 
This interesting genus i is pt allied to the lean and Ci- 
choracee. 
