prothallus /prō-thalˈəs/ or prothallium /prō-thalˈi-əm/

1. The gametophyte or sexual generation in ferns and related plants, a small plate of tissue derived from a spore and bearing antheridia and archegonia
2. The homologous stage in gymnosperms

prothallˈial, prothallˈic or prothallˈoid adjective

• querulous
• querulously
• querulousness
• querulousnesses
• query
• querying
• queryingly
• queryings
• query language
• query languages
• quesadilla
• quesadillas
• quest
• questant
• quested
• quester
• questers
• questing
• questingly
• questings
• question
• questionabilities
• questionability
• questionable
• questionableness