1907] CALDWELL & BAKER—MICROCYCAS CALOCOMA 333 
by Wricurt as follows: ‘“‘ Zamia calocoma Mig. (Wr. 3193: foliola 
pleraque 8” longa 4” lata; squamis ad Z. Brongiartii Miq. accedit).”’ 
In DE CANDOLLE’s Prodromus (167:538. 1868) there appears the 
first full account of Microcycas as a distinct genus, the description 
being based upon previous descriptions and upon material collected 
by Wricut. From this we make the following excerpts: 
Squamae strobili masculi planae, imbricatae ? crassiusculae, a basi ad mediam 
partem cuneatae et subtus crebre loculigerae, a medio ovatae, steriles. Squamae 
strobili feminei laxe juxtapositae, axi perpendiculares, superiore majore parte 
drupam irregulariter sulcatam simulante, nempe ellipsoideo-costatae et sulcatae, 
extremitate truncata vel obtusa, inaequaliter (in sicco ?) bullata, basi in stipitem 
brevem angustata, stipite utrinque in apice semen ellipsoideum sessile gerente.— 
Arbuscula Antillana; trunco humili . . . . nunc fructificatione cognita, genus 
inter Dioon et Zamiam apparet, a priore diversum foliolis basi segregatis et 
articulatis, squamis femineis pinguibus, apice contundatis et seminibus ut vulgo 
sessilibus; a Zamia, squamis masculis planis, non peltatis, femineis pelta multo 
longiore. 
Under the description of the species (M. calocoma (Miq.) A.DC.) 
the following statements appear: 
Strobili masc. forma mihi ignota. Squamae (segregatae) 18-20 mill. longae, 
9-10 mill. medio latae; parte fertili centim. longa, supra glabra, subtus undique 
loculis vestita; parte sterili cinereo-tomentosa, supra in nervum crassum medio 
inflata. Strobilus femin. 2 decim. longus, cylindricus? (in specimine sectus), 
pedunculo cinereo-tomentoso brevi? suffultus. Squamae 2 cent. longae, stipite 
4-5 mill. longo, reliqua parte 15 mill. longa, 9-10 mill. lata, costis irregularibus 
latere sup. magis convexo, apice aut, planiusculo subquadrangulo, aut contun- 
dato-sinuoso, pallide pilis stellatis tomentoso. 
BenTHAm and Hooker (Gen. Plant. 3:447. 1880) give an incom- 
plete and imperfect characterization of the genus, and incorrectly 
cite the name of the species as cubensis. 
From the above descriptions it is clear that our material is Micro- 
cycas calocoma; but it is also evident that the specimens used as a 
basis of these descriptions were far from being fully representative. 
There are two specimens of Wright 3193 in the Wright-Sauvalle 
herbarium, one of which possesses a young fruit. This is the number 
cited and described by DE CANDOLLE, and is identical with our own 
collections. 
The following description is based upon our material: 
Stem 25°™ to 10™ high, 1-64™ in diameter, often branched; bark 
